Showing posts with label focus stacking. Show all posts
Showing posts with label focus stacking. Show all posts

Sunday, December 10, 2017

It's a small, small world

A basic tip

I don't usually post photography tips here but I keep seeing the same questions and the same errors time after time, and it's bugging me. So if you're not a photographer, or if you're too advanced for these tips, feel free to skip ahead. I have a few of them I want to share, what better place to do so?

Focus

The #1 reason for rejecting photos is that they're out of focus. You can fix a lot of things in post processing, but you can't fix out-of-focus, or "OOF". Unless there's some extraordinary reason to keep an OOF picture it's going to end up in the trash.

The thing(s) you want in focus in your picture have to BE in focus.


Cute pine marten but no way to save this picture. The focus was on the branch above him and he is out of focus. Good thing I got another shot in focus!


Branches in the foreground can be a challenge. Your camera WANTS to focus on them. The other shot is a better composition, but which one would YOU keep?
Your camera is smart. But it can be fooled. Suppose you're shooting two people against a background, but there's a space between them. Unless you're careful, the camera will focus on whatever's in that space, not on the subjects. So how do we solve that? How about locking in the focus on one of the subjects, then moving the camera to recompose the image correctly? What about increasing the depth of field by stopping down the aperture* so that you have a better chance that the subject is in focus?

Your camera has a variety of ways of focusing: manual, continuous, single; you can use one point in your viewfinder or a bunch of them, you can average, you can preset your focus to a specific distance. It can track moving subjects, or not. You can use the shutter release button by pressing it halfway down or you can program a button on the back of the camera for focusing (it's called "Back Button Focusing". Look it up. Google is your friend). The best way to learn how to focus your camera is to RTFM.

READ THE FRIGGIN' MANUAL

Do it. You'll learn something. But that's not enough. It's like learning how to swim by watching YouTube videos. That's great but what you really have to do is jump in the water. Same thing here: Shoot pictures. Lots of pictures. Think about your focus while you're doing that until it becomes part of you.

When you're looking through and vetting your images (throw away the bad ones, folks. Ask yourself, "will I EVER want to look at this image again?), pause on that OOF one and ask yourself, "Why is this OOF? What should I have done differently"? That's how you learn.

* But if you stop down the aperture, either your shutter speed has to decrease or your ISO has to increase, which creates problems with camera shake or added noise. Camera shake is a whole other subject, watch for a future tip. But I will say one thing about using high ISO: you're DEFINITELY going to throw out an OOF picture but the ONLY people who care about noise are other photographers. Get over it.


Do you print your pictures?

If you print yourself, you fall into three categories:

■ You're fussy and you know what you're doing
■ You're not that fussy, you're just happy to see prints
■ You're fussy but you don't have a clue.

If I printed, I would fall into category 3.
I don't print. I send them out. I'm still mostly in category 3.

I'm lucky, I have friends who print and who are in category 1. Occasionally I'll go to Costco or someone like that for "category 2 prints", but if I have prints to sell, I'll go to a professional lab and pay the big bucks. Or call in a favour from one of my really talented friends.

I decided that I wanted some canvas prints, especially from my Newfoundland trip, and there was a vendor offering great "Black Friday" deals so I thought I'd give it a try.

Now I do have a LITTLE knowledge of what it takes to prepare a file for printing. The main thing I learned was this: if I prepare an image so that if it looks onscreen or online like I want the print to look, I'm going to be very disappointed. There are a couple of reasons for this.

First, I edit in the ProPhoto colour space because it gives me the biggest gamut of colours to work in. I'm careful to do that in both Lightroom and Photoshop. But I know that when I export an image for printing (or for anything else), it needs to be converted to sRGB and it WILL LOOK DIFFERENT.

Second, I know it is important to calibrate my monitor and I do that with a ColorMunki device regularly. However I'm guilty of the same thing that almost everyone else is, my monitor is too bright. It just looks prettier when you're looking at a picture onscreen. Also when I'm judging images for a competition, or just looking at them online, 90% of them have been edited on someone's monitor which is also too bright and to see what the maker is trying to portray, you need to turn up the brightness. 

You need to turn it WAY DOWN if you want to match what a print is going to look like. For one thing, your monitor creates colour by projecting a mix of red, green and blue light; a print's colour come from light being absorbed by cyan, magenta, yellow and black inks (simplistic, I know), so it's different. You can turn up the brightness on a monitor, but the more ink you add to a print the darker it gets!

as an aside: don't even think about converting your image to CMYK, if that last sentence put that in your mind. The printer takes RGB input and converts it inside the machine to the inks it uses. The only time that's not true is when you're printing on a printing press.
And third, if you want to see onscreen what your print is going to look like, you have to do something called "soft proofing", which is available in both Lightroom and Photoshop. You're telling your computer "show me what my picture is going to look like if it's printed by this specific printer on this specific type of paper". And that's going to be very different from what it looks like normally onscreen.


Some images are tougher than others. Here's an example. On the left is what I wanted my print to look like. It's a screen capture of the image under normal conditions. But I knew it wouldn't, especially after converting to sRGB for the printer. So I turned on soft proofing and I edited the image until it looked right for print. The right image is what it ended up at onscreen with soft proofing turned off. 

You might think it looks pretty good here, but the bright lights are WAY too bright, they have a halo around them they're so bright, the sky is too saturated and the soft nuances of the reflected city lights in the hillside are too strong. You don't want a print to look like that (at least I don't!). It won't: it'll look more like the one on the left.

If you're going to print at a pro lab, they should be able to send you the ICC profile of the printer and paper combinations they're using. Pop those into Photoshop or Lightroom and soft-proof to them and your prints should come out as expected.

The resulting print turned out excellent. I had this printed on canvas and I didn't have the ICC profile, but I figured that using the profile for the Epson 7900 on matte paper, I would get close. It looks almost exactly like the image at left (in hindsight, a little dark, still). Some images are more difficult than others. I know that the blacks are really going to fill in and the colours are going to be much less saturated.

I now have 6 large format canvas prints ready to hang on my walls. And two others hanging on other peoples' walls that I've sold. I also had two others: they helped me heat my house by burning them in the fireplace. Literally.


Here are a few. The two landscapes at the bottom are 20x30. The piping plover is 16x24


This abstract is called  "Sunset on Lake Superior". It's 24x36

These canvas prints are all available for purchase. They're all digitally signed and will be marked as "Artist's Proof"s to distinguish them from any limited edition prints which may follow. Contact me.

I will have more prints made. There's something about seeing your work on something other than a computer screen. Even though I still have about 30 or 40 printed images left over from a show I did a few years ago, but new stuff comes up. I do not plan to start printing myself because it's a ton of work to get it right, and a good printer (say Epson 7900) is about $5000. You can get away with a lot less if all you want to print is 4x6's or run-of-the-mill 8x10's but I know I wouldn't be satisfied.


Lens sold

Almost every wildlife picture I've shot in the past year or so has been with my

Tamron 150-600mm f/5-6.3 Di VC USD Lens

which I have just sold (I first started writing this a few days ago at which point it was "for sale").

"Why?", you might ask. Well, because I'm ready to step up to the AF-S VR Zoom-Nikkor 200-400mm f/4G IF-ED lens which, new, would be almost 8x the price, and weighs twice as much. I've been very satisfied with the Tamron but it's time. By the way, if you have one of those for sale, let's talk.

It took some practice to learn to use this lens effectively. Especially if you put it on a crop sensor body (did I say it has a Nikon mount? It has a Nikon mount!), where it's effective focal length is about 1000 mm. At about 68 oz, you can actually handhold this lens but you have to watch your shutter speed if you do.

So I've probably shot about 10,000 images with this lens (and kept half of them!). I had the firmware updated at Tamron last year, and I added a LensCoat neoprene cover to protect it and make it less visible when shooting birds. The lens is in great shape; there are some 'brassing' marks on the lens mounting foot, and no scratches on any of the glass. Somewhere, I have the box and all the goodies that came in it with the lens.

(I told you I wrote this when it was still for sale!)

Here's a link to a quick web gallery of sample images shot with this lens. All of them were at the maximum focal length of 600mm. Click on any image to blow it up.

Contact me if have or you know anyone who has that Nikon 200-400. Or a 400mmf/2.8 prime!


A couple more from 'Gales'

I forgot to post a couple of pictures in the last blog, so I thought I'd add them in here. Neither one is from Wawa, both were taken on the drive up.


I shot this along Hwy 141 in Lake Rosseau on the way up to Wawa. Spectacular rockface. 


When I stopped in the Soo for a day on the way up, there was continuous heavy rain and strong winds.  This is what it was like in downtown Sault Ste. Marie that day 



GALES 2018 dates have been announced! Mark your calendars.
OCTOBER 25 — OCTOBER 28
This year, the primary instructor will be Ben Eby. If everything goes well, I plan to be there too, to help out.

We're just starting work on the event and the web links, etc. If you want to be kept up to date as it develops, CLICK HERE.

There's also a Facebook group called "Gales of November". Up to now it's been restricted to people who were participating in the workshop but we've decided to open it up to people who are interested in perhaps joining us next October. It's a place to see pictures from previous years, see discussions and comments, ask questions, and so on.
It's a closed group: only people who are members can see the content. But if you're interested, if there's a possibility you might attend, by all means, join the group. Just search for "Gales of November" on FB and you'll find us!



SPEAKING OF WORKSHOPS:

I'm thinking about going back to Newfoundland this summer and about guiding some photographers and artists to some outstanding spots. I'm thinking about providing accommodations and finding local experts to help out. I'm thinking that it should not cost $4000 to participate.

If this interests you at all, please send me an email or contact me privately. This is really preliminary, but I need to find out how much interest is out there.



Pictures

It's time for some pictures.

After procrastinating for a long time, I finally got around to buying Helicon Focus Pro software. It's primarily intended for focus stacking when you're shooting macro. I've recently seen some awesome insect photos and needless to say, if you want to shoot snowflakes properly, you have to focus stack. 

Since I bought it, I haven't found even ONE insect to shoot. Dead or alive. It's just not the right time of year. So to test the software, I had to find a variety of other subjects to shoot. I set up my light tent and got to work.



I went outside and found some little berries. This was my very first effort.

Then there were some water drops, on a pebbled plastic surface

Here's a closeup of a dead leaf

My diamond ring... I did add a little post-processing to this one in Topaz.

Here's another leaf, with a drop of water on it. Learning, learning!

So I need to find some insects to shoot. And snowflakes! The challenge is that I have to be tethered to my laptop, so I have to figure out the logistics of doing that out in the cold. Watch this space!

— 30 —

Monday, May 01, 2017

It's Spring. But not everywhere...

I was in Toronto the other day. What a difference from here! Apple and cherry trees are masses of flowers, people's gardens are blooming, grass is green. Here in the Highlands, not so much. In fact that's an understatement. Some green shoots here and there, the forest floor is still covered with dead leaves. The ATV trail I like to ride is blocked with a fallen tree (Jack, if you're reading this... chainsaw & winches. Call me)

That said, the trilliums at the Wild Water Preserve are coming out. There are actually flowers in some of the sunnier spots.


This is a focus stack of about 8 or 9 images. In theory you can control the background better this way. I also did a single shot at f/22 just for comparison:

not much difference in this case. Slightly different treatment and some extra Clarity added in this one. 


I used one of the DaVinci presets in Impression as a basis for this sketch, then added some colour back in. This is another focus stack. 

It was a nice day Saturday. When I went to the landfill, I decided to get some practice shooting birds on the wing: what better location? Hundreds of gulls and crows and turkey vultures to shoot. I concluded that the Tamron lens is too slow autofocusing: you needed a few seconds for the lens to lock in and if it lost focus, sometimes it wouldn't get it back. Still...


A face only a mother could love. But the Turkey Vulture is majestic in flight.  


Not my favourite bird but again I was practicing and using the Tamron at 600mm handheld. Sometimes you get lucky — I have to turn that into more of a regular occurrence.  


I need a lot more practice before Newfoundland!



Speaking of Newfoundland

All booked! Things could change but my itinerary looks something like this:




I'm planning to take 3 days to drive out, including a loop around Cape Breton. The ferry leaves at midnight on the 27th, arriving early in the morning. It's a long drive the next day to Twillingate. I'll spend a week in each of three locations, and I left a few days at the end to go to the Cape St. Mary bird sanctuary. The ferry from Argentia is expensive but it would save me a couple of days and about 1500 km of driving.

I'm skipping two places I really should visit: the Gros Morne national park (it's halfway up the west coast) and L'anse aux Meadows which is the very Northern tip. The former because I've been there, I'm not a hiker, and it messes up the schedule and the latter because it's FAR. 700km up the coast (and another 700km back). I do want to go to Fogo Island (been there too) but if I do it'll be a day trip out of Twillingate. And a must-see is the Puffin colony at Bonavista.

The places I'm staying are all cottages or efficiencies because I really don't want to eat in restaurants all the time.

I'm working on a shot list. I plan to make the record of this trip into a story. I came across a new piece of software called Adobe Spark which looks promising to create such a record. More on this later.



Pictures

As promised, I'm holding it down to a few. Only my better images should be here, I think. I still have to work up a portfolio... not enough hours in a day!

'Tis the season to go to Carden Plain (or as I've been told, to call it "Carden Alvar". When I remember...). I'm there at least once a week. So far not all the birds are back, but here are a few shots I'm proud of:


I shot this at the 'blind' of course. Not an unusual or particularly difficult bird to shoot but I like the pose and I absolutely NAILED the sharpness and focus! 


This is a "lifer" for me (non-birders — it means I've never seen one before). I decided to try the Seven Styles Watercolor action on this one and I like the effect! I can't claim to have found him: Bruce Carmody, whom I ran into at Carden ALVAR, spotted it. I'm really not very good at seeing things... 


It's all about the light, isn't it? You know it, I know it... how come I don't remember that more often? 

... and finally, my "parting shot"


I've been wanting to shoot a composite that includes the Milky Way arch. So it was frustrating to see cloudy skies every night. On Saturday, the skies cleared but I knew clouds were coming in. So I went out to my usual spot only to discover no Milky Way (covered by clouds or I don't know where to look). But I had set up to shoot composite pano's so I did one: a full 360° in fact. This is part of it, a 5-shot merge — the actual file is over 70Mp! I did not replace the sky or foreground, it's 5 portrait-orientation images 15° apart merged together. I took my time and edited this the best I could. Smooth tones, one of the best landscapes I've done suitable for large scale printing. 

Again, the intent of this shot was practice for Newfoundland. I want to do night and dusk shots like this of the landscapes and seascapes.

Time to go: painting class in half an hour! 'Til next time.

— 30 —


Sunday, July 17, 2016

Sittin' on the dock of the bay...

...musings

I went for a swim in the lake a couple of evenings ago and it occurred to me that swimming in the lake is substantively different from swimming in a pool. My dock is in a shallow bay, so your experience, where you swim, might be a little different than mine. So here are some (a)musing points


  • In a swimming pool, your eyes get red because people pee in the pool. Fish and other animals pee in the lake, but that doesn't give you red eyes. And it doesn't smell like chlorine.
  • Why is it that that spot on your lower back just above your waist is so much more sensitive to cold water than, say, your private bits? I've stood there, waist deep, saying, "ok, on the count of three... one, two, two-and-a-half...". In a pool, the water's all the same temperature. In the lake, it's 10° colder when you get down two feet!
  • When was the last time you were swimming in a pool and a raft of 15 ducks swam by? 9 kiddies and 6 adults. And since I was immersed in the water with only my head sticking up, they weren't intimidated and ignored me as they swam around me. Wish I could have seen them better, but I wasn't wearing my glasses.
  • Loons are BIG. At least twice the size of the ducks. One swam by about 8 or 10 feet from me then dove under, looking for fish (and not my nether bits, I hope!)
  • I love "Sitting on the Dock of the Bay, wasting time..." (Tell me this isn't better than the Otis Redding original...)


I made a metallic print of this image a couple of years ago and enjoy looking at it almost every day.



Another shot of my dock, also quite old. This was one side of my business card for a few generations! That's my friend Sean who was up here when we attended a photo course at Fleming College with Rob Stimpson some years ago. 




Speaking of Business Cards

I just ordered a new set, ran right out of my last ones. I get them made locally and I have a wholesale account where I can deliver a set of 500 full-coloured, double sided, Aqueous finished cards for about $25 (shipping and taxes extra but if we combine orders...). Think about it. Your own pictures...






Front and back (or back and front, you choose!) of my new cards. If you're reasonably adept with Photoshop, I can tell you how to prepare the final art for printing. If not, I can do it for you but understand that I need to be compensated for the time I spend on it. Contact me.


OK, truth time. I got my cards today. Hate them. The milky way image looks great on a lighted screen but hopelessly dark in print. The other side looks "OK" but it's not great either. It's not a quality problem with the supplier: they did their job. It was me. I had decided that I wanted a matte finish to the cards, not glossy. Nope. Also I didn't pay enough attention to the mid-tones, they're too dark. Also tiny detail doesn't work on a 2" x 3½" card. I should know better. Back to the drawing board. I'll report back when I get some new cards I like. But that shouldn't stop you! Just use a nice, bright, simple image.


The star shot I used on the card was taken at my friend Janie's place. I had planned to head up to Algonquin Park to shoot stars that night but dinner ended late and I was tired. It was July 1 and there were fireworks going on, so I just got the camera (and the bug jacket!!) out and did some shots down by the lake. I went back in and asked the ladies to turn the lights off for a bit because they were painting quite a bit of light on the dock and boat and I didn't want it in the shot. 

I had to do a bit of work on the original to finish it for the card. I did a bit more work to make it a printable large size image. Here's the original, SOOC (straight out of the camera):



Aside from the obvious toning in the sky, and removing a couple of the hot lights, especially at right, I wanted to enhance the reflections in the lake and the distortion on the left side, caused by the wide angle lens bothered me, so I did some selective warping and rotation to straighten it up. I wanted a warmer saturation on the house lights too. Actually I masked in a flipped version of the sky into the water, then applied a ripple filter to soften it. A considerable amount of attention to detail. By the way, the finished photoshop file is over 1.5Gb in size! Here's the result:


Oh yeah. And I turned that meteor trail into a better shooting star and got rid of the second one which I found distracting. Metallic or acrylic print? I don't think it would work on conventional media. 

The same night, on the way home, I stopped at the beach opposite 12-Mile Lake Church and did these shots:


I used a humongous flashlight to point to the Milky Way. If an alien being on Deneb looks up in about 2600 years, they should see the light from this flashlight. Thanks, Fred! 


Setting the flashlight to its widest setting and lowest power, and brushing the trees for a quick half-second pass during my 15-second exposure, I light painted the trees. You need a smaller flashlight for this! 



...more musings

{rant}

Photographers constantly bemoan the fact that people don't want to pay for their work. "We'll give you recognition..."; "our thousands of viewers will see your work..."; "you'll get photo credit...". And the photographers are right: when was the last time you told a plumber that you would tell everyone how great a job they did (instead of paying them) or tried to use your photo credit to buy a coffee at Tim Horton's?

I'm constantly inundated with invitations to submit images for competitions. What better praise could one get than to say you were recognized in an International Salon or exhibited in a museum. I had four images selected for a juried show last year at the Agnes Jamieson Gallery in the Minden Cultural Centre and yes, I'm very pleased at the recognition and the positive reviews, but it cost me over $100 per image to print and frame them. I still have three of them here, one did in fact sell through the museum.

Newspapers and other media (including Network Television) encourage their readers/viewers to submit pictures and they never get paid. Facebook and YouTube are inundated with pictures and videos that people post for free. And photographers regularly complain when someone copies their work, which is inevitable. If you don't want people to steal your work, don't post it.

But the juried Salons abound. Just today I had another invitation to submit. But in order to do so, you have to pay them! In this case, $25 US per image submitted. I get that they have expenses to defray but why is it that the artist is the one who doesn't get paid? The company who runs the Salon makes money. Their employees are paid. Physical prints are displayed in a gallery and the gallery owner makes money. The director and staff make a salary. So does the mailboy and the secretary and even the kid who gets them coffee (which they pay for...). Not the artist.

That's not to say that there aren't legitimate competitions. The International Salon run by the Toronto Camera Club is in its 123rd year! Yes, you have to pay a fee to submit images but this prestigious event is different from the seemingly hundreds of imitators out there because (a) it's a legitimate and well-credentialed show, (b) a quality printed book of winning images is published and (c) it's run by a group not out to profit by the show. But when commercial outfits, including some well-known magazines, run such events for money, I have to question it.
For the record, I submitted a dozen entries to the 122nd International Salon and received seven acceptances (but no ribbons!). Dr. Ron had 12 acceptances and 4 awards! Impressive. This year I have accepted an invitation to judge the Photojournalism category for the Salon (I did two years ago as well) but new FIAP rules state that as a judge, I cannot submit images (even in other categories). :(
Anyway, I don't castigate amateur photographers for offering images for free or for photo credit – technically I fall in the same category, with my blog and social media postings and since I don't make a living from my art technically I'm not a working professional – but I draw the line when someone makes a profit from that work.

{/rant}




Lightroom
I finally split my catalog.

I have over 80,000 images in my Lightroom catalog. Since the catalog is just a database, that shouldn't matter, and probably doesn't. But my dilemma is that the size of the photo archive itself is so big that I had to buy a new 4Tb external drive to contain it. Last year, I bought two 3Tb drives. They're full to overflowing.

So I decided to take a step back and split the catalog. One of the beauties of Lightroom is that if you keyword your images, you can search for and easily find virtually any image in an instant. For instance, there are 676 pictures of me in that 80,000 image database, but I've marked only 87 of them as not-so-objectionable (everyone knows there are NO good pictures of yourself!). I'm never going to want to see the other 589 pictures. 

Here's what I decided: I want to be able to access all the images that I've marked as "keepers" over the years (there are about 11,000 of them) and I want to see all of this year's pictures (2016) as well (about 8000 so far). The combined count is a little over 16,000 images which takes up a little over 1Tb of disk space. They're sitting on a 3Tb drive now and I'll probably go out and buy an extra 2Tb drive to use as a duplicate. That should leave me enough room for a while. My 4Tb drive and another (very full) 3Tb drive will serve as an archive for the full 80,000 images.

It was no trivial task. I probably could have taken a small shortcut but what I did was

  • select the marked "keepers" in the existng catalog, spending some time deciding what to keep
  • exported them as a catalog to the external drive
  • same process, 2016 images
  • combine the two catalogs
  • set backup and other preferences for the new catalog and move it to the internal drive in the computer, leaving the images in their permanent home on the external
  • make sure the links are intact between the catalog in its new location and the images on the external drive
  • create a backup of the catalog on the external drive (so it's in two places)
  • started the process of building smart previews and 1:1 previews (not done yet).
The final step will be to echo the external drive to a fresh one and copy a "keepers only" archive to go on another external drive that I store off-site. For now, I have all the images in 3 places. Now I need to update to the latest Lightroom CC version (I haven't yet) and I'm good to go. 




Some pictures

But you didn't come here to read my rants and raves. You came to look at some pictures! Here are some new ones for your enjoyment.


Serious off-road wheels. Parked outside Kawartha Dairy last week, there were six or eight of these vehicles there. Still shaking the bugs out of Topaz Impressions 2... 

Speaking of Kawartha Dairy, here's a little time-lapse video I shot that day, set to appropriate music! Enjoy: 
http://photography.to/video/kawartha2.mp4
I've been enjoying my painting classes with Harvey Walker. I seem to be learning but progress is slow. I've been trying some different things to develop my skills and I have to admit I enjoy charcoal sketching:




I sketched this in graphite and charcoal while sitting at the Minden Wildwater Preserve. By the way, a sketchpad is a great chick magnet. Almost as good as a puppy.Girls kept coming over to see what I was drawing! 




Sitting just outside my front door. The beauty of sketching or painting as opposed to photography is that you can change or leave out things as you wish. On the other side of that fence is the road and the Red Umbrella Inn, which I chose not to include. Also the near tree would be much bigger if it were in the correct perspective.  The colour you see is just a reflection.

Here's my latest oil painting:



Fishing 12-Mile Lake. I shot a photo just North of Harvey's studio on the way home one day. The composition's not quite right: we decided that the boat needed to be bigger in relation to the people, so I extended the bow which put it too central in the picture. The boat, and the people, of course, were the hardest for me to render: the reflections the easiest.  



Here's Harvey's studio. I had just completed the underpainting and putting colour on the boat and people.  



Also just beyond Harvey's studio was this patch of wildflowers. I couldn't resist using Topaz Impression to give it a painted effect. 




This is half-a-dozen images focus stacked. Focus stacking gives you beautiful, soft backgrounds and tack sharp subjects. 

As long as I'm shooting focus-stacked flowers, here's an image of an orange lily right at my house:



Fourteen or Sixteen stacked images (I forget which). I actually processed three or four different shots and chose this one as my favourite. I toned back the colours and the exposure to give this a more subtle feel.  



12-Mile Lake Sunset. I was with Ann Alimi, along with her husband Fabrice and her daughter Elaine Ho (plus Tango, the wonder-dog!) at the Red Umbrella Inn following the dog workshop Ann taught. The sunset didn't look like much, but I convinced her to stay for about half an hour after sunset because I knew that's when the colours would appear. Sometimes I'm right! This really lends itself to the painted look and my favourite starting preset is "Impasto" in Impression2. I think I'll print this on canvas.

We did do a dog workshop but I haven't processed the images yet! Next time, stay tuned.


— 30 —

Wednesday, June 01, 2016

Flower Power

Focus Stacking

For the photographers among my readers. 

Others might enjoy the images but have no interest in the methods. This first part is a bit of a loose tutorial on Focus Stacking, just from a hands-on, empirical direction. I thought about putting it in the tech blog instead but there's a very popular article there on exporting images from Lightroom, especially for print, that I don't want to push down. If you're at all confused about cropping or sizing images for print, read this article: www.faczentech.blogspot.com.

Often I like to work on new techniques, or at least techniques that I don't use frequently so that I can improve my skills. A good example is focus stacking. I spent some time on it the other day and at the same time, figured out how to get my camera down to ground level with my 3 Legged Thing tripod. Let's start there.

It's pretty simple, actually. Remove the tall centre column and replace it with the short one they provide. I even left off the collar under the ball head to get an inch or so lower, so I had the camera about 6" (15cm) off the ground. I could have had it even lower, in fact right ON the ground, by inserting the column upside down and hanging the camera underneath (image would be upside down) but that was overkill for what I was shooting. It's good to think about and practice this stuff for when I need it in the future.


This tripod (3LeggedThing "Brian") allows me to put the legs flat on the ground so the minimum height is governed by the height of the centre column and ball head. The camera is  Nikon D800 and lens is a Nikkor 105mm f/2.8 macro. I used a cable shutter release and to help see the LCD, a Hoodman Loupe which you see at lower left. I find shooting multiple shots using LiveView to be cumbersome so mostly I just used the viewfinder.

Focus Stacking is used to control depth of field. I could have used a small aperture to get the whole flower in focus but the background wouldn't have looked the same.


Besides, a small aperture means less light so shutter speed and/or ISO would have to be adjusted. This shot was 1/60 sec at f/18, ISO 100. Note this was after the sequence below and I had spritzed water drops on the flowers.
With a large aperture, depth of field is minimal and when you're shooting macro, often not enough:


1/2000 second at f/3.3 (as wide as this lens will go when you're shooting this close), ISO 100. Note that only part of the back flower is in focus. Click any image to blow it up if you want to see it more clearly.

So I took 7 exposures, each one focused a little closer to the camera than the previous one. I looked through the viewfinder and just moved the focus ring slightly between shots, using the cable release so as to not move the camera. Then I opened all seven as layers in Photoshop, auto-aligned them and then auto-blended them. Photoshop looks for the sharpest focus in each image and masks out the rest. You could do it manually but that would be tedious.


Here's the resulting image. I cropped it before exporting it here, as well as doing some sharpening and toning... notice the great-looking background as compared with the small aperture shot up above!

* You may have wondered why I didn't say "the Bokeh" of the background. Because that would be inaccurate. Bokeh refers to the shape and tonality of out-of-focus highlights, not the background as a whole. 

Faithful readers know me by now... I can't leave well enough alone! Here's my finished image after I applied some Topaz Impression, using the Impasto-1 preset as a basis.


These wild strawberry flowers are about the size of my thumbnail, by the way. When I did the frame for display here (an action I wrote in Photoshop), I took a colour from the image to use as a background. This image itself is ready for printing!

When you focus stack, you have to be careful to get all the slices in focus. Not that easy to do! Sometimes you need to work at smaller apertures than the minimum (deeper depth of field) or use more images in the stack. For the following image, I merged 20 exposures and on close examination, even that wasn't enough (the closer you are, the shallower the depth of field).


This is also a finished image. I added a bit of Topaz Glow and again, Topaz Impression for the painterly effect. 1/1000 second at f/4, ISO 100. 

I shot a couple of others, some worked out, some didn't: here's another focus stacked image:


Look at the delicious Bokeh in this image! I thought of cropping tighter but I thought the yellow corners – especially the flower at lower right – added a depth and balance to the shot. This has the look of a medium- or large-format image from the old film days! It's why I love my D800. This is comprised of 8 stacked images shot at 1/1000 sec at f/3.3, ISO 100.

You can click on any image to blow it up and view it larger onscreen. Pretty sure I'm going to print this one, probably on canvas.



Gales of November news



This was the banner atop the blog until today, when I replaced it with the Sandhill Cranes picture. 

Two more people have signed up for the October 27th workshop so we're slowly running out of room! If you've been sitting on the fence, time to hop off! The closer we come to it, the more excited I am about the experience we're going to have! 

Go to www.photography.to/gales for details and to sign up.



Flower Power

Carden Plain isn't just for the birds! There's interesting flora there as well. Among the many varieties there are two in particular that I photographed third week of May, the "Prairie Smoke" and the "Indian Paintbrush". I can't say that either are unique to the area but the word 'ubiquitous' comes to mind. Large bands of both plants give the Alvar a spectacular colour and texture in the Spring.


Bands of Prairie Smoke (and of course dandelions. Where AREN'T there dandelions!)


The buds of the Prairie Smoke are beautiful in their own right. Here I did a multiple-image focus stack while lying on my stomach in the grass. "They" are right when they say you have to get down on your subject's level! 


When the flower ripens, this is what you get. The tendrils give it a smoke-like appearance.  


That's more obvious when you get a whole bunch of them together. This was another focus-stack. 


A patch of Prairie Smoke. Now you can see where the name comes from!

Indian Paintbrush is a brilliant, photogenic Orangy-red and it also grows in bands across the open grassland. The bird in the distance is a Sandhill Crane! 


Here's a bunch of them. You can figure out where the name came from. This plant is more indigenous to the Pacific Northwest.  


I chose to do an artistic, painterly rendering using Topaz Impression. Many of the presets yielded interesting images, it was hard to choose just one! 


What I love about this shot is how the colours of the two flower species' work together on the green and yellow background to produce a coordinated palette of colour. Looks like this will make a fine abstract print on canvas. 

Next on tap is the trillium. Several species of these abound in Ontario for a short time in the Spring. One variety I haven't seen this year is the "Painted Trillium", but it ain't over 'till it's over!

Last week I posted some trillium shots that I painstakingly lit and stacked and crawled on the ground to capture. Then again...


I shot this one hanging out the car window with my long lens! We were driving on a dirt road just North of Carden when we saw these. The white trilliums turn pink as they fade and die. 


This specimen was so beautiful I had to give it special treatment. Another one I shot from the comfort of my car seat!



Birds...

Yeah, well! I'm definitely not an experienced birder but I'm an enthusiastic one. I don't know what I'm looking at, it's hard for my eyes to pick them out, but it's a challenge. And I don't have the best optics, just adequate. It's good to know some really qualified birders such as Dan Busby and Bill Bunn, and some people with phenomenal eyes like Kathy McKelvey-Brown and Linda Cresswell to shoot with.

I just went through the list at the back of my Peterson's Field Guide and I came up with 84 species that I've seen (I may have seen others but haven't recorded them). I don't necessarily have photos of all of them. I look forward to seeing more!


Grey Catbird, seen behind the Cultural Centre in Minden. There were lots of birds there, I'm looking forward to
going back. 


Brown Thrasher at Carden Plain 


If Dan hadn't told me what this was, I'd never have guessed! But now that I look at it, I realize, well, it's obvious! This is an American Robin fledgling just out of the nest, wisps of down still on its head. Shot right behind my house! 

I have some spectacular bird pictures for you for next time, so stay tuned. To get an email note that a new Blog entry has been posted, please click the newsletter button at top right.

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