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Forums > Back > Understanding Depth of Focus
popo
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#3
01-19-2012, 08:35 PM
Hmm... just had a look at similar shots with the same lens on a 600D, and I'm not seeing the variation. So I think we can say it is not the lens, but the body. This is further confirmed looking at some 50mm f/2 shots on the 450D where I get a similar effect.



Bear in mind I had the 450D modified for astro use, I wonder if that could be a contributing factor. If I get bored on the weekend I might open it up and check it. Maybe there's a big speck of dust in there causing the offset!
<a class="bbc_url" href="http://snowporing.deviantart.com/">dA</a> Canon 7D2, 7D, 5D2, 600D, 450D, 300D IR modified, 1D, EF-S 10-18, 15-85, EF 35/2, 85/1.8, 135/2, 70-300L, 100-400L, MP-E65, Zeiss 2/50, Sigma 150 macro, 120-300/2.8, Samyang 8mm fisheye, Olympus E-P1, Panasonic 20/1.7, Sony HX9V, Fuji X100.
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Messages In This Thread
Understanding Depth of Focus - by popo - 01-19-2012, 06:49 PM
Understanding Depth of Focus - by wim - 01-19-2012, 08:18 PM
Understanding Depth of Focus - by popo - 01-19-2012, 08:35 PM
Understanding Depth of Focus - by wim - 01-19-2012, 08:49 PM
Understanding Depth of Focus - by popo - 01-19-2012, 09:00 PM
Understanding Depth of Focus - by wim - 01-19-2012, 11:20 PM
Understanding Depth of Focus - by popo - 01-20-2012, 12:15 AM
Understanding Depth of Focus - by frank - 01-20-2012, 10:44 AM
Understanding Depth of Focus - by Guest - 01-20-2012, 12:19 PM
Understanding Depth of Focus - by wim - 01-20-2012, 04:30 PM
Understanding Depth of Focus - by wim - 01-20-2012, 04:38 PM
Understanding Depth of Focus - by wim - 01-20-2012, 04:42 PM
Understanding Depth of Focus - by popo - 01-20-2012, 05:24 PM
Understanding Depth of Focus - by frank - 01-21-2012, 03:19 AM
Understanding Depth of Focus - by Guest - 01-21-2012, 12:22 PM
Understanding Depth of Focus - by frank - 01-23-2012, 02:34 PM
Understanding Depth of Focus - by Guest - 01-24-2012, 02:26 PM
Understanding Depth of Focus - by popo - 01-24-2012, 08:27 PM
Understanding Depth of Focus - by wim - 01-25-2012, 12:45 AM
Understanding Depth of Focus - by frank - 01-25-2012, 03:19 AM
Understanding Depth of Focus - by popo - 01-25-2012, 07:40 AM
Understanding Depth of Focus - by wim - 01-25-2012, 08:48 AM

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