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Canon DSLR Challenge | all galleries >> CSLR Challenge 153 - Depth of Field (a lot or a little) - hosted by Michael Kilpatrick >> Eligible > 7th: crayons by Pops
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26-AUG-2009 Pops

7th: crayons by Pops

Using the DOF stacking method identified by Michael.
http://www.aravind.ca/Tutorials?edof_cs4


This is the third generation of this image. It is seven layers stacked because the 30D offers five horizontal positions with auto focus and I added one further to the left and right

Canon EOS 30D
1/60s f/4.0 at 40.0mm iso100 full exif

other sizes: small medium original auto
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roberta12-Oct-2009 16:29
Excellent!!!
Canon DSLR Challenge01-Sep-2009 03:30
Perfect. Definitely perfect now, Pops. Congratuations! ~Lydia
Canon DSLR Challenge30-Aug-2009 21:24
Now it is perfect, Pops, the result was worth all the effort. It should be possible to achieve similar results using a tilt-and-shift lens but when I look at the price tag, a t/s lens is not a realistic alternative. -Gerald
jnconradie30-Aug-2009 17:34
Very instructive! And a beautiful image as outcome. Thanks and well done. Regards Nico
Michael Kilpatrick28-Aug-2009 07:58
Well done Pops. I came to the same conclusion as you regarding the auto align option.
With a subject as close as this, changing the focus point changes the effective focal length (and hence, field of view) a lot and the images just don't match without being aligned. Regards, Michael
Guest 27-Aug-2009 23:22
I'm putting versions 1, 2 and 3 in pending so everyone can see the progression.
Guest 27-Aug-2009 23:21
Third time is the charm.

Despite what the tutorial says I activated the option to automatically align the layers. Without that alignment I was getting ghosting at either end.
Canon DSLR Challenge27-Aug-2009 20:49
Yippeee! Well done, Pops! I'm lovin' it! ~Lydia
Guest 27-Aug-2009 13:08
Reshot this with 10 images. I did an auto focus on the extreme left and right points, identified the starting and ending points and then manually adjusted the focus ring in very small steps.

My poor old computer managed to get the job done.

Better but still not all the way there. Silly little things I notice after shooting and processing. The first crayon is too blurred for my taste. The paper seam on several crayons needs to disappear. There's something funky going on way out there in violet land.

Michael, thanks for the suggestion. I may give it a try.
Michael Kilpatrick27-Aug-2009 12:51
Nice image Pops. If you're not happy with the sharpness in parts of the image and can be bothered to do it again, maybe exactly the same process at f/16 instead of f/4 would resolve it, but you have probably already thought of that.
Your comment about 10 layers possibly causing problems is well founded. When I was processing my demo image, I got a "not enough memory" message until I processed all the raws as jpgs, loaded them into a stack and saved the stack to my hard drive. My pc has 4 GB of RAM, so I was surprised by that. Regards, Michael
Guest 27-Aug-2009 11:55
Lydia, Yeppers, there's a big problem with focus at several points down the line. That's because I merged only five layers.

To improve this I need at least 10 layers. But I don't have a 40D or 50D with the magnified image preview, I don't have a right angle view finder with magnification and my eyes are too weak to do the job on their own. Not to mention that 10 layers might bring my 8 year old computer to it's logical knees.

I may experiment some more today!
Canon DSLR Challenge27-Aug-2009 02:26
I'm lovin' your creativity, Pops!

I like the white bg and the whole color spectrum. Seems like there's some problem with focus in the right oranges/left yellows... I can't ever get that photo merging stuff to work. *sigh*

!Lydia
Guest 26-Aug-2009 23:35
What the heck is that "yellow orange" crayon doing there?