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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
Phase Detection Autofocus KeithB 1 15505 Last post March 13, 2009, 03:01:31 PM
by Bob Atkins
Hyperfocal Distance and Infinity lukeap69 11 15393 Last post August 21, 2008, 11:23:58 AM
by Bob Atkins
Circular polorizing filter questions 2_Rastas 13 14356 Last post November 04, 2008, 07:43:35 PM
by 2_Rastas
does crop factor affect the actual f-stop? emanresu 8 12243 Last post April 07, 2010, 09:32:50 AM
by KeithB
The Cost vs. Performance Dilemma of Choosing a Circular Polarizing Filter dppollet 3 11568 Last post May 12, 2009, 12:38:44 PM
by KeithB
any recommendations on good GND filters? « 1 2 » emanresu 20 10517 Last post March 11, 2011, 04:04:03 PM
by Bob Atkins
Testing an old flash for voltage KeithB 9 9824 Last post December 02, 2009, 01:27:22 AM
by nikonian
Green Goblin effect Barrierislandgirl 9 9692 Last post February 09, 2009, 09:19:08 AM
by Barrierislandgirl
1.6X crop versus full frame sensor diffraction limits with small apertures John Hanlon 2 9650 Last post July 01, 2008, 10:08:11 AM
by John Hanlon
sRAW and how it is implemented? 509 2 9531 Last post August 28, 2008, 10:07:33 AM
by 509
Processing digital infrared photos jamisan 7 9503 Last post February 23, 2009, 07:24:59 PM
by jamisan
EXIF Hyperfocal Distance etc. diplonics 3 9407 Last post July 14, 2008, 09:32:21 AM
by KeithB
Lens camouflage? « 1 2 » Frank Kolwicz 20 9318 Last post September 18, 2013, 12:03:09 PM
by Frank Kolwicz
What physical/optical attributes determine the max aperture of a lens? emanresu 10 9079 Last post November 04, 2009, 08:54:38 PM
by emanresu
!.4X Extender recommendations: Canon or Kenko or Sigma ? nycandre 5 8885 Last post August 11, 2009, 06:33:53 AM
by SidSP
Help with a "walk-around ... DP 10 8653 Last post May 04, 2009, 09:32:58 AM
by KeithB
Modifying the Canon EF-S 18-55 *IS* lens for use on Canon 10D? E7RNN 5 8600 Last post February 06, 2011, 02:13:58 PM
by poppy79424
Auto Focus Technology for Low Light Moving Subject Shooting 427l 3 8222 Last post February 23, 2009, 10:15:00 AM
by Bob Atkins
Manual focus lenses yayas 6 8142 Last post April 26, 2009, 08:38:31 PM
by Bob Atkins
Canon 5DII and 500L/4.5 still has focus problem « 1 2 » Frank Kolwicz 19 8096 Last post August 10, 2012, 06:14:55 PM
by Frank Kolwicz
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