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.

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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.

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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!

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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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I'm Famous!

I'm Famous!
(not rich yet, though)

PhotoLife Magazine has chosen my image, "Dahlia Impressions" for their June/July 2015 edition. And printed it... not once, not twice, but THREE TIMES!

ON THE COVER 

 

On the Index page and in the story inside

It's quite an honour to be chosen as the lead image from all the photography clubs in Canada! As I write this, the original print is on display at the Agnes Jamieson Gallery in Minden and you can purchase this original image, impeccably printed and framed by contacting me directly.

Seriously. It's for sale. After this original sells, I'll start a limited edition of prints and prices will go up. Hurry.

There are matching prints of other floral subjects available as well.

Start, or expand your collection of Glenn Springer fine art prints now!



This is for the photographers in my audience.

Topic #1: A place to hang out on Facebook
I've long been involved in some discussion forums online, back to the old NAPP days and then when that died, to a smaller group called "TIF — The Imaging Forum", which still exists but it's pretty quiet (Here's a link to the forum itself. It's free to join...). That's because everyone seems to have migrated to Facebook, where it's harder to organize and maintain an ongoing multi-threaded discussion, but much easier to get a dialog going on a specific topic, to share images and get constructive criticism.

So I helped create a Facebook group called, well, "TIF — The Imaging Forum" and I've included a hyperlink to it here. It's different from the huge FB groups like 'Photoshop and Lightroom' which has over 100K members, but it's got some very friendly and helpful people in it that go back to the old days, as I mentioned. These are people who want to learn, share or help: some are new or novice and others are very knowledgeable and it's not limited by geography, we have people from all over the world! It's kind of like a "Camera Club in the Cloud"!

You need to join the group to participate: it's a closed group so 'anything you post in TIF, stays in TIF'! which means it can't be directly shared outside the group.  Click "join" and the moderator (me!) will approve you.

Note: this group is ONLY for friendly, helpful people. If you're a sh1t-disturber, you'll get kicked out right away. 

If you're on Facebook, have a look. It will take a while to get a critical mass of topics going, so be patient. That can be a good thing, too: you won't get overloaded with messages!

Topic #2: My new preferred shooting mode!
A few weeks ago, I started experimenting with auto-ISO, with the camera mode set on Manual. It's changed my shooting style some, so it's worth talking about.

Some background. I watched the following video from a fellow named Steve Perry.

https://www.youtube.com/watch?v=mFLxYMLsv8I&feature=youtu.be

I was somewhat skeptical but you know what? It works. He very clearly tells you off the top that (1) it works on pretty well all modern Nikons, but only some Canons and other cameras, but he tells you in the video how to find out if it works in your camera. And (2) it's not for everyone and certainly not for every situation. I find it useful when shooting any kind of action – could be wildlife, could be sports – but turn it off when shooting static subjects or landscapes, situations where I have time to reflect and don't have to shoot on the fly.

Now if you care about what ISO you're shooting, you have to be careful to preset the maximum ISO limit in your camera. When don't you care? Well, when you're shooting those action or quick shots and the image story or content is more important. I've found that the high-ISO performance of my D800 is awesome: I can get low noise images even as high as ISO 6400. But you don't have to go that high!

So what's the big advantage? I've long taught that what makes or breaks the quality of a picture is the aperture: you choose the depth of field you want to select the feel of your composition. So I recommend Aperture-Priority mode in most cases. But when you shoot action, the shutter speed is equally important – maybe even more so if it involves freezing (or on the other side, allowing) motion. And shutter speed is a consideration when you take camera shake into account.

So this gives you the best of both worlds! You can go into manual mode, choose both the aperture and the shutter speed you want, and let the camera choose the ISO! Like I said, it's not appropriate ALL the time, but it's now my go-to mode when shooting anything that moves.

Don't take my word for it: watch the video and try it. And let me know what you think! The best way to do that is on Facebook: link to the "TIF — The Imaging Forum" page as I mentioned above.

More from Carden Plain

First of all, I get why you need a big mother lens when you shoot birds. I've managed to capture some presentable images with my 70-200 + 1.7x teleconverter but you really want to have a 500mm or 600mm lens for this. I'm fortunate in that (a) I have an outstanding camera in the D800 that allows me to crop tightly and still have enough pixels to make an acceptable display image and (b) I have a lens good enough to retain the acuity that I need, but for the large format print work I'd like to do, it isn't enough. Someone suggested I trade in my car for a lens. If only I could!

That said, it's not only about taking their pictures, it's about SEEING the birds in the first place! I'm really not very good at that, which tells you that you really should think about visiting the Carden Plain because you're sure to do better than me.

Carden Alvar is not just about birds, it's about other indigenous wildlife as well, and flowers too. I hope to get back there to shoot some more before they're gone.

This is called "Prairie Smoke" and it is ubiquitous in Carden Plain. Hope they're still around next visit.

 The Scarlet Indian Paintbrush is hard to photograph effectively. I had to resort to Topaz Impression
(Palette Knife/Oil Painting) to get one that I liked. 

Here's a few birds...

Pretty common Song Sparrow, doing his thing on a fence. I like the framing of this shot. BTW there were some out-of-focus weeds in the foreground, minimized by a large aperture.

American Bittern, not common here, in a typical stance. He's saying, "you can't see me! I have great camouflage and  I'm going to hold still"! Works better when you're not on a green background, dude!

The story on the bittern is that as I headed down the trail on the Sedge Wren Marsh Walk, a birder coming the other way said, "there's a heron just to the left when you reach the river". Guess she wasn't a birder either, I was expecting a great blue heron, far more common! I watched him feeding in the river, I got a few shots of him with a minnow in his mouth, but nothing spectacular. Another photographer joined me, someone with one of those humongous lenses and he got the same shots I did, but closer. I don't think he knew what it was either.

In mid-swallow. 

Yellow Warbler, singing his little heart out! I'm not an expert birder, but I think this is what you're going for
when you shoot "birds on a stick"! 

Whitewater Action

As my loyal readers know, I have received press accreditation to shoot the PanAm Games this summer. I'm still waiting for my press card from the Olympic Committee and I have to take it down to Toronto to get it validated and pick up my vest and press kit. I'm SO looking forward to this! We were told, "no vest, no get in". I'm feeling privileged. It better arrive in time!

Last weekend was the CanoeKayak Canada Slalom Team Trials and the winners of this event were seconded to the team representing Canada at the PanAm Games. There were a few foreign competitors trying their mettle against the wild waters of the Gull River, some of whom did very well!

Devin McEwan and Casey Eichfeld from the USA powered their way through the waters just below the "Otter Slide". 

Ben Hayward will represent us in the Men's Canoe Singles. Normally I discard shots where the paddle blocks the athlete's face but in this case the athleticism and power sold me on this shot.

Jazmyne Denholland is our Women's Kayak hopeful on the Canadian Team. 

This is a composite of six images showing Canadian team member Haley Daniels (Women's Canoe) navigating gate #10 on the course. Competitors have to pass through the gates: missing one costs a 50 second penalty and just touching one costs two second. I hope I can get this vantage point during the PanAm's! 

Here's a shot that says to me what this sport, and this river is about. I'm thinking about printing multiple copies of this one for sale during the Games. I'll probably do one original print on museum quality paper, frame it and sign it and make it available for sale as well as a set of limited edition prints. Any interest, speak now before the original is gone!

PanAm Games 2015 at the Minden Wildwater Preserve in Ontario, Canada 

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