Technical Questions on Photography and Optics

Subject	Started by	Replies	Views	Last post
newbie lens question	126andy	2	1896	March 07, 2010, 02:08:51 PM by 126andy
Circular polorizing filter questions	2_Rastas	13	9999	November 04, 2008, 07:43:35 PM by 2_Rastas
Auto Focus Technology for Low Light Moving Subject Shooting	427l	3	5929	February 23, 2009, 10:15:00 AM by Bob Atkins
sRAW and how it is implemented?	509	2	7446	August 28, 2008, 10:07:33 AM by 509
Lines per mm. in relation to magnification factors.	alanscape	1	3903	January 04, 2009, 10:48:20 AM by Bob Atkins
White Balance on Canon EOS Digital	alexthephotoguy	2	4342	January 05, 2009, 04:12:42 PM by KeithB
I accidentally forcefully over-turned the lens barrel (rotating)	ashy	1	3488	August 11, 2009, 02:54:06 PM by Bob Atkins
checkerboard chart	avi	2	3201	March 15, 2010, 11:41:13 AM by avi
Green Goblin effect	Barrierislandgirl	9	7107	February 09, 2009, 09:19:08 AM by Barrierislandgirl
Canon Macro Lens	Beachduffer	4	4243	June 20, 2009, 08:12:22 AM by Beachduffer
Canon EF 100mm f2.8 marco usm VS Sigma 105mm f2.8 macro	Beachduffer	3	5429	June 17, 2009, 10:15:20 AM by Bob Atkins
Tamron, Sigma Lens	Beachduffer	1	2139	January 18, 2010, 04:07:08 PM by Bob Atkins
Focusing long lens camera	beardown911	3	2187	June 11, 2010, 12:02:07 PM by beardown911
New Lens for me	bgclight	4	4786	November 30, 2008, 01:36:16 PM by bgclight
Canon XTi flash	bgclight	5	4711	June 24, 2009, 08:34:49 AM by bgclight
digital exposure data	Bill I	3	1704	February 25, 2011, 06:24:32 AM by emanresu
Las Vegas Nights and Grand Canyon - Best Lens under $400 for site	blazer	3	5393	March 08, 2010, 07:36:50 AM by ClaireJeffries
100% Crop	bmpress	4	4230	June 29, 2009, 09:30:52 AM by KeithB
Limitations on editing scanned slides	bmpress	2	2509	December 12, 2009, 05:36:15 PM by bmpress
White Balance Menu Settings	bmpress	3	2385	May 12, 2010, 10:35:41 AM by bmpress