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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
maximum aperture size in zoom lenses photosbybrian 1 5347 Last post March 28, 2009, 05:47:11 PM
by Bob Atkins
A Prime to Better the Kit Lens ? Flash 1 2458 Last post October 24, 2011, 05:05:23 PM
by Bob Atkins
Statement in Luminous Landscape KeithB 1 2915 Last post August 09, 2013, 04:16:09 PM
by Bob Atkins
How does microfocus adjustment work? Frank Kolwicz 1 4284 Last post August 08, 2012, 02:36:36 PM
by KeithB
The old 20D Paula 1 3157 Last post January 22, 2010, 10:52:04 AM
by Bob Atkins
Tamron, Sigma Lens Beachduffer 1 3600 Last post January 18, 2010, 04:07:08 PM
by Bob Atkins
Sigma VS Canon Telephot Comparison Question Tallyther 1 2982 Last post January 10, 2010, 10:19:43 PM
by Bob Atkins
Exposure Time Limitations on a Canon 40D Tallyther 1 3341 Last post March 26, 2012, 09:59:31 PM
by Bob Atkins
Canon 40D picture quality issue! Tallyther 1 3715 Last post March 07, 2010, 07:21:51 PM
by Bob Atkins
Image Resolution enhancement KeithB 1 2866 Last post February 01, 2011, 08:17:23 AM
by emanresu
Canon PowerShot A720 IS j cowan 1 4801 Last post May 16, 2010, 11:11:01 AM
by Bob Atkins
Telescope Mounts for Cameras klindup 1 2596 Last post June 13, 2013, 01:39:39 PM
by Bob Atkins
18-55 for macro use but what's a better choice? EssEll 1 4822 Last post July 08, 2009, 08:01:34 PM
by Bob Atkins
Phase Detection Autofocus KeithB 1 16433 Last post March 13, 2009, 03:01:31 PM
by Bob Atkins
Lens adapters KeithB 1 1554 Last post June 10, 2014, 04:09:17 PM
by Bob Atkins
Remembering Velvia color DNA 1 6459 Last post June 22, 2008, 07:06:41 PM
by Bob Atkins
Lines per mm. in relation to magnification factors. alanscape 1 5950 Last post January 04, 2009, 10:48:20 AM
by Bob Atkins
Checking out a new camera duranash 1 5297 Last post December 05, 2008, 05:13:15 PM
by Bob Atkins
Canon 25mm Extension Tube. Leong 1 8932 Last post August 21, 2008, 11:36:30 AM
by Bob Atkins
photoshop elements 6 conbu19 1 8482 Last post May 29, 2008, 11:44:19 AM
by Bob Atkins
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