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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
Canon 5DII and 500L/4.5 still has focus problem « 1 2 » Frank Kolwicz 19 7037 Last post August 10, 2012, 06:14:55 PM
by Frank Kolwicz
Canon 40D AF Issues - What are my options? gkmusser 3 7176 Last post June 17, 2009, 04:59:43 PM
by Bob Atkins
Rechipping a Sigma 400 5.6 APO TeleMacro for Canon wilfredmike 4 7303 Last post October 16, 2009, 07:52:53 AM
by wilfredmike
Canon 25mm Extension Tube. Leong 1 7327 Last post August 21, 2008, 11:36:30 AM
by Bob Atkins
Your "Black Dots" article - question duranash 8 7448 Last post January 09, 2009, 02:23:22 PM
by Bob Atkins
Auto Focus Technology for Low Light Moving Subject Shooting 427l 3 7637 Last post February 23, 2009, 10:15:00 AM
by Bob Atkins
Lens camouflage? « 1 2 » Frank Kolwicz 20 7758 Last post September 18, 2013, 12:03:09 PM
by Frank Kolwicz
Manual focus lenses yayas 6 7806 Last post April 26, 2009, 08:38:31 PM
by Bob Atkins
Help with a "walk-around ... DP 10 7970 Last post May 04, 2009, 09:32:58 AM
by KeithB
EXIF Hyperfocal Distance etc. diplonics 3 8066 Last post July 14, 2008, 09:32:21 AM
by KeithB
Modifying the Canon EF-S 18-55 *IS* lens for use on Canon 10D? E7RNN 5 8133 Last post February 06, 2011, 02:13:58 PM
by poppy79424
!.4X Extender recommendations: Canon or Kenko or Sigma ? nycandre 5 8417 Last post August 11, 2009, 06:33:53 AM
by SidSP
What physical/optical attributes determine the max aperture of a lens? emanresu 10 8481 Last post November 04, 2009, 08:54:38 PM
by emanresu
1.6X crop versus full frame sensor diffraction limits with small apertures John Hanlon 2 8810 Last post July 01, 2008, 10:08:11 AM
by John Hanlon
Processing digital infrared photos jamisan 7 9065 Last post February 23, 2009, 07:24:59 PM
by jamisan
sRAW and how it is implemented? 509 2 9094 Last post August 28, 2008, 10:07:33 AM
by 509
Green Goblin effect Barrierislandgirl 9 9182 Last post February 09, 2009, 09:19:08 AM
by Barrierislandgirl
Testing an old flash for voltage KeithB 9 9226 Last post December 02, 2009, 01:27:22 AM
by nikonian
any recommendations on good GND filters? « 1 2 » emanresu 20 9396 Last post March 11, 2011, 04:04:03 PM
by Bob Atkins
The Cost vs. Performance Dilemma of Choosing a Circular Polarizing Filter dppollet 3 10766 Last post May 12, 2009, 12:38:44 PM
by KeithB
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