AirBrontosaurus Goldmember  3,814 posts Likes: 1 Joined Sep 2005 Location: Indianapolis, Indiana More info | Jul 01, 2006 16:31 | #1 This was taken at f/32, the maximum aperture on my Sigma. I think this is the absolute most DOF I can get with this setup.  Here is a 100% crop of the image (for size comparison):
You can see the loss of detail due to the extremely high aperture. Anyways, I think this is about as good as I'm gonna get. Thanks for looking! Chris | My Flickr
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eccles Goldmember  2,948 posts Joined Jun 2006 Location: Bristol, UK More info | Jul 01, 2006 17:19 | #2 Ever considered an electron microscope?
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MrsKitty Goldmember 1,193 posts Joined Nov 2005 More info | Jul 01, 2006 19:47 | #3 LOL! That looks like another head up there between his eyes!
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nation Senior Member  906 posts Joined Jun 2005 Location: Sydney, Oz More info | Jul 02, 2006 00:05 | #4 Awesome shot. I too am confused as to which one is that guy's head. 7D and lenses.
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dpastern Cream of the Crop 13,765 posts Likes: 3 Joined Aug 2005 Location: Ipswich, Queensland, Australia More info | Jul 02, 2006 00:10 | #5  Permanent banI suspect that f32 you are gaining DOF but losing resolution very badly.
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chemicalbro Cream of the Crop  5,245 posts Joined Jun 2005 Location: anywhere but here More info | dpastern wrote: I suspect that f32 you are gaining DOF but losing resolution very badly. Dave I agree with that.............. after about f/11 the camera and lens start to have diffraction issues and everything starts to appear soft........... at f/32 this will be even more of a problem.. Alan
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AirBrontosaurus THREAD STARTER Goldmember 3,814 posts Likes: 1 Joined Sep 2005 Location: Indianapolis, Indiana More info | chemicalbro wrote: I agree with that.............. after about f/11 the camera and lens start to have diffraction issues and everything starts to appear soft........... at f/32 this will be even more of a problem.. I know, but you should see the DOF at f/11. It is literally not even half of one eye! This is just me trying to see how much DOF is possible. I know that smaller apertures lose detail, especially really small ones like f/32. Chris | My Flickr
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LordV Macro Photo-Lord of the Year 2006  More info | Jul 02, 2006 13:22 | #8 Good shot- you could always open the aperture a bit and try focus stacking instead http://www.flickr.com/photos/lordv/
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