Technical Questions on Photography and Optics

Subject	Started by	Replies	Views	Last post
EF 28-135 vs EF 24-105	Van	0	3591	October 21, 2009, 09:40:47 AM by Van
Article about the eye as an optic system	KeithB	0	3105	February 25, 2009, 03:04:44 PM by KeithB
Best Case ISO	KeithB	0	1074	April 28, 2011, 07:21:06 AM by KeithB
Lens Genealogy	KeithB	0	884	October 11, 2011, 12:06:00 PM by KeithB
MOVED: banquet photos	Bob Atkins	0	3507	June 29, 2009, 12:43:35 PM by Bob Atkins
1600mm lens for less than $180??	emanresu	0	2462	December 07, 2009, 09:55:02 PM by emanresu
lose the preflash.	nikonian	0	1939	December 06, 2009, 03:45:25 AM by nikonian
5Dll vs 1DS Markll	tony rizzo	0	3043	May 12, 2009, 04:47:17 PM by tony rizzo
Solved: all those problems with the 500/4.5 and 5dII	Frank Kolwicz	0	671	August 10, 2012, 06:24:30 PM by Frank Kolwicz
Lens Resolution Article	KeithB	0	4388	June 10, 2008, 01:23:52 PM by KeithB
Minolta MD lens used on Canon EOS 7D... one problem,	rich	1	3027	July 14, 2010, 11:52:26 PM by Bob Atkins
New scratch-resistant filters?	deemery	1	3792	February 18, 2009, 10:41:51 AM by Bob Atkins
Phase Detection Autofocus	KeithB	1	9661	March 13, 2009, 03:01:31 PM by Bob Atkins
Canon PowerShot A720 IS	j cowan	1	2703	May 16, 2010, 11:11:01 AM by Bob Atkins
Canon 40D picture quality issue!	Tallyther	1	2349	March 07, 2010, 07:21:51 PM by Bob Atkins
18-55 for macro use but what's a better choice?	EssEll	1	3195	July 08, 2009, 08:01:34 PM by Bob Atkins
maximum aperture size in zoom lenses	photosbybrian	1	3587	March 28, 2009, 05:47:11 PM by Bob Atkins
The old 20D	Paula	1	1711	January 22, 2010, 10:52:04 AM by Bob Atkins
Tamron, Sigma Lens	Beachduffer	1	2139	January 18, 2010, 04:07:08 PM by Bob Atkins
I accidentally forcefully over-turned the lens barrel (rotating)	ashy	1	3488	August 11, 2009, 02:54:06 PM by Bob Atkins