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+  The Canon EOS and Photography Forums
|-+  Photography Forums
| |-+  Technical Questions on Photography and Optics
Pages: 1 ... 3 4 [5] 6 7 ... 9
Subject Started by Replies Views Last post
DOF optimization pesa 10 10460 Last post February 20, 2010, 02:39:40 PM
by Bob Atkins
Will changing lens focal length by TC corrupt image stabilizer? dentheman 4 6561 Last post February 12, 2010, 02:22:58 PM
by dentheman
The Age Old Question - Lenses Rikster71 14 12056 Last post February 11, 2010, 10:30:55 AM
by Bob Atkins
EF kit lense Auto Focus stixstudios 4 6289 Last post January 30, 2010, 07:59:55 PM
by emanresu
I want an eye popping sharp lens compared to what I have. So which is least $? Tallyther 10 10566 Last post January 29, 2010, 08:08:22 PM
by emanresu
"L" Lens Mount Issue Tallyther 2 5775 Last post January 23, 2010, 12:41:14 PM
by Tallyther
Questionable Damage Effects Due to Dented End of Lens Tallyther 2 5552 Last post January 23, 2010, 12:40:15 PM
by Tallyther
The old 20D Paula 1 4737 Last post January 22, 2010, 10:52:04 AM
by Bob Atkins
Tamron, Sigma Lens Beachduffer 1 5333 Last post January 18, 2010, 04:07:08 PM
by Bob Atkins
Canon 70-300 vs Sigma 120-400 ricojones 2 10268 Last post January 15, 2010, 06:50:02 PM
by ricojones
I'm looking at buying a refurbished Canon EF 300mm f/2.8L IS USM. Please advise Tallyther 2 6317 Last post January 13, 2010, 07:48:12 PM
by Tallyther
Sigma VS Canon Telephot Comparison Question Tallyther 1 4652 Last post January 10, 2010, 10:19:43 PM
by Bob Atkins
Limitations on editing scanned slides bmpress 2 5686 Last post December 12, 2009, 05:36:15 PM
by bmpress
1600mm lens for less than $180?? emanresu 0 5396 Last post December 07, 2009, 09:55:02 PM
by emanresu
lose the preflash. nikonian 0 4611 Last post December 06, 2009, 03:45:25 AM
by nikonian
Testing an old flash for voltage KeithB 9 15733 Last post December 02, 2009, 01:27:22 AM
by nikonian
Close focus distance vs depth of field KeithB 3 8723 Last post November 30, 2009, 03:31:38 PM
by nikonian
What physical/optical attributes determine the max aperture of a lens? emanresu 10 14475 Last post November 04, 2009, 08:54:38 PM
by emanresu
EF 28-135 vs EF 24-105 Van 0 6551 Last post October 21, 2009, 09:40:47 AM
by Van
Rechipping a Sigma 400 5.6 APO TeleMacro for Canon wilfredmike 4 10965 Last post October 16, 2009, 07:52:53 AM
by wilfredmike
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