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+  The Canon EOS and Photography Forums
|-+  Photography Forums
| |-+  Technical Questions on Photography and Optics
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Subject Started by Replies Views Last post
Exposure Time Limitations on a Canon 40D Tallyther 1 1954 Last post March 26, 2012, 09:59:31 PM
by Bob Atkins
Canon 25mm Extension Tube. Leong 1 6626 Last post August 21, 2008, 11:36:30 AM
by Bob Atkins
test chart; inches or centimetres? jpmfc46 1 5139 Last post August 26, 2008, 11:19:32 AM
by Bob Atkins
Checking out a new camera duranash 1 4238 Last post December 05, 2008, 05:13:15 PM
by Bob Atkins
Location of Aperture KeithB 2 6146 Last post August 21, 2008, 12:54:44 PM
by KeithB
DOF: comparing TS-E lenses for Product Photography (1" - 10" sized jewelry) mr.peacock 2 2906 Last post July 13, 2010, 09:22:07 AM
by mr.peacock
FF vs APS ( 5D vs 20D sensor) article nycandre 2 3911 Last post August 01, 2009, 01:54:45 PM
by nycandre
Testing Old FD Lenses SidSP 2 4184 Last post July 28, 2009, 03:12:39 PM
by SidSP
Question about the new DXO site and lens measurement methods Johnny 2 2295 Last post June 28, 2010, 08:56:58 AM
by Johnny
Raw files and ISO THE QUESTION NO ONE SEEMS TO BE ABLE TO ANSWER REGGIE 2 3747 Last post October 06, 2009, 07:56:02 PM
by REGGIE
Lens testing KeithB 2 2452 Last post June 16, 2010, 11:54:12 AM
by Bob Atkins
newbie lens question 126andy 2 2288 Last post March 07, 2010, 02:08:51 PM
by 126andy
"L" Lens Mount Issue Tallyther 2 2645 Last post January 23, 2010, 12:41:14 PM
by Tallyther
Questionable Damage Effects Due to Dented End of Lens Tallyther 2 2501 Last post January 23, 2010, 12:40:15 PM
by Tallyther
I'm looking at buying a refurbished Canon EF 300mm f/2.8L IS USM. Please advise Tallyther 2 3127 Last post January 13, 2010, 07:48:12 PM
by Tallyther
checkerboard chart avi 2 3769 Last post March 15, 2010, 11:41:13 AM
by avi
Limitations on editing scanned slides bmpress 2 2878 Last post December 12, 2009, 05:36:15 PM
by bmpress
1.6X crop versus full frame sensor diffraction limits with small apertures John Hanlon 2 7834 Last post July 01, 2008, 10:08:11 AM
by John Hanlon
Canon 70-300 vs Sigma 120-400 ricojones 2 6098 Last post January 15, 2010, 06:50:02 PM
by ricojones
Tamron 18-250, not really 250. Really not 250. winniv 2 3979 Last post September 16, 2009, 10:50:27 PM
by winniv
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