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About Photography / Professional Stephen CaissieMale/Canada Group :iconlandscaped: Landscaped
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Deviant for 5 Years
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by dA-Hobo

I know that you're just starting out with photography, so I'm keeping that in mind as I write this critique. That said, I want you to u...

I apologize in advance – this might sting a little. I'll start with what you got right. The pose is suitably casual, and having your mo...

by icmb94

Overall, a well-executed, dramatic low-key shot. Given your constraints (lack of a tripod and high ISO setting on the camera), I'd say ...


I took Monday off work, and got up at 3:00 am to head out to the woods an hour or so west of Toronto to do this:…
My new creative project is coming together nicely. This is a quick-and-dirty test shot I did of our model out in the woods yesterday:…
Woot! My website is live once more. Finally got the new web host all set up.
Lens test image
This is a test image I shot using the new Schneider-Kreutznach 45mm f/3.5 "Blue Ring" lens for the Phase One XF medium-format system. My camera body is not an XF, however, but the previous generation Phase One 645DF+ body, and my digital back is the four-generations-old Phase One P30+. This image is not stock, but you are free to download the full-res photo to review it for yourself. This image was processed in Capture One Pro 10.0.1 and converted to a JPEG in Photoshop CC, but otherwise, no additional processing has been applied.
Got to mess about with one of the new Schneider Blue Ring lenses for the Phase One XF system yesterday, the 45mm f/3.5 leaf shutter. I didn't have my own 45mm lens handy in order to do an image comparison, but I can tell you that the Schneider lenses are certainly beefy compared to the old Mamiya/Phase One design. I'll post a sample when I have a free moment.
One of the trickiest concepts for beginning photographers to understand is depth of field. While it can be defined, determined mathematically, and even looked up on the fly, it's one of those things that is easier to demonstrate. Thus, the following chart.

Depth of field comparison image by SteveCaissie-stock

(Tip: you may want to click through to the image above once you've finished reading the rest of this tutorial, then click the download button to get the full effect).

In a nutshell, there are a number of factors that determine how much of a given scene your camera will render in sharp focus. Three of those factors are the length of the lens, the aperture inside the lens, and the distance at which the lens is focused. Generally, the following rules may be observed:

  1. The wider the lens, the deeper the apparent focus. The longer the lens, the shallower the apparent focus. In the image above, I've shot three scenes with three of my lenses, a 45mm (moderate wide angle), an 80mm (normal field of view), and a 150mm (moderate telephoto).*
  2. The wider the aperture, the shallower the apparent focus. The narrower the aperture, the deeper the apparent focus. I've demonstrated this by photographing each scene with four aperture settings for each lens: f/2.8, f/5.6, f/11 and f/22.
  3. The closer the plane of focus is to the camera, the shallower the apparent focus. The farther away, the deeper the focus. Each scene above, top to bottom, represents a subject focused at 5 feet from the camera, 10 feet, and 100 feet.

*A quick note about those lens lengths: the camera I used to create these images is a medium format digital camera. The "normal" lens length of 80mm has an equivalent field of view to a 50mm lens on a 35mm system, or a 35mm lens on a camera with an APS-C sensor. For reference, my moderate wide angle lens would be equivalent to about 28mm on a 35mm camera, while my 150mm lens would be roughly 95mm. In fact, format (sensor/film size) is the fourth determinant of depth of field, but since I only have the one camera, I can't demonstrate the difference between the smaller formats, the medium formats and the large formats. You'll just have to take my word for it that f/2.8 on my 80mm lens is shallower than f/2.8 on a 50mm small format lens.


SteveCaissie-stock's Profile Picture
Stephen Caissie
Artist | Professional | Photography
Photographer. Ghost town hunter. Cat whisperer.


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WayneBenedet Featured By Owner Jan 18, 2017
Thank you very much for the :+fav:
michael-d-beckwith Featured By Owner Dec 23, 2016  Hobbyist Photographer
Hope you have a merry christmas and happy new year. :)
SteveCaissie-stock Featured By Owner Dec 24, 2016  Professional Photographer
Thanks, you as well. :D
arrsistable Featured By Owner Nov 8, 2016
Thank you so much for allowing the community to use your stock!…
Rrabbix Featured By Owner Sep 24, 2016  Hobbyist General Artist
Thank you for the watch. :3

I love your photo's!
WayneBenedet Featured By Owner Apr 13, 2016
Thank you for the :+fav:
Kyndelfire Featured By Owner Mar 28, 2016  Professional Photographer
Just wanted to tell you that I checked out your website and I love your fashion images.  They're gorgeous!
SteveCaissie-stock Featured By Owner Mar 29, 2016  Professional Photographer
I had good crews with me for each of those. That really makes a huge difference.
ivoryshogun Featured By Owner Mar 8, 2016
Thanks for the Fav!
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