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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
test chart; inches or centimetres? jpmfc46 1 5666 Last post August 26, 2008, 11:19:32 AM
by Bob Atkins
Remembering Velvia color DNA 1 5626 Last post June 22, 2008, 07:06:41 PM
by Bob Atkins
Sigma VS Canon Telephot Comparison Question Tallyther 1 2371 Last post January 10, 2010, 10:19:43 PM
by Bob Atkins
Lines per mm. in relation to magnification factors. alanscape 1 5113 Last post January 04, 2009, 10:48:20 AM
by Bob Atkins
Tamron, Sigma Lens Beachduffer 1 2899 Last post January 18, 2010, 04:07:08 PM
by Bob Atkins
newbie lens question 126andy 2 2576 Last post March 07, 2010, 02:08:51 PM
by 126andy
checkerboard chart avi 2 4197 Last post March 15, 2010, 11:41:13 AM
by avi
FF vs APS ( 5D vs 20D sensor) article nycandre 2 4269 Last post August 01, 2009, 01:54:45 PM
by nycandre
Tamron 18-250, not really 250. Really not 250. winniv 2 4573 Last post September 16, 2009, 10:50:27 PM
by winniv
DOF: comparing TS-E lenses for Product Photography (1" - 10" sized jewelry) mr.peacock 2 3355 Last post July 13, 2010, 09:22:07 AM
by mr.peacock
Limitations on editing scanned slides bmpress 2 3211 Last post December 12, 2009, 05:36:15 PM
by bmpress
sRAW and how it is implemented? 509 2 9250 Last post August 28, 2008, 10:07:33 AM
by 509
I'm looking at buying a refurbished Canon EF 300mm f/2.8L IS USM. Please advise Tallyther 2 3624 Last post January 13, 2010, 07:48:12 PM
by Tallyther
Canon 70-300 vs Sigma 120-400 ricojones 2 6899 Last post January 15, 2010, 06:50:02 PM
by ricojones
Questionable Damage Effects Due to Dented End of Lens Tallyther 2 2797 Last post January 23, 2010, 12:40:15 PM
by Tallyther
Lens testing KeithB 2 2914 Last post June 16, 2010, 11:54:12 AM
by Bob Atkins
Raw files and ISO THE QUESTION NO ONE SEEMS TO BE ABLE TO ANSWER REGGIE 2 4203 Last post October 06, 2009, 07:56:02 PM
by REGGIE
"L" Lens Mount Issue Tallyther 2 3004 Last post January 23, 2010, 12:41:14 PM
by Tallyther
Question about the new DXO site and lens measurement methods Johnny 2 2590 Last post June 28, 2010, 08:56:58 AM
by Johnny
1.6X crop versus full frame sensor diffraction limits with small apertures John Hanlon 2 9088 Last post July 01, 2008, 10:08:11 AM
by John Hanlon
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