Technical Questions on Photography and Optics

Subject	Started by	Replies	Views	Last post
Canon IS effectiveness: amplitude and frequency	Frank Kolwicz	8	97	Today at 11:42:15 AM by Frank Kolwicz
Magnification APS vs Full Frame	KeithB	3	127	April 23, 2013, 12:59:26 PM by Bob Atkins
Extension Tube Question EF 70-300 IS	rixtix	4	132	April 30, 2013, 05:04:45 PM by rixtix
Long Lens Apertures	KeithB	3	224	April 06, 2013, 02:29:48 PM by Bob Atkins
Sensor size comparison	Frank Kolwicz	3	362	January 06, 2013, 02:39:32 PM by Bob Atkins
Solved: all those problems with the 500/4.5 and 5dII	Frank Kolwicz	0	672	August 10, 2012, 06:24:30 PM by Frank Kolwicz
A Prime to Better the Kit Lens ?	Flash	1	863	October 24, 2011, 05:05:23 PM by Bob Atkins
Lens Genealogy	KeithB	0	886	October 11, 2011, 12:06:00 PM by KeithB
380 EX Flash Gun	leorcid	2	1022	June 18, 2011, 10:44:04 AM by deemery
Exposure Time Limitations on a Canon 40D	Tallyther	1	1036	March 26, 2012, 09:59:31 PM by Bob Atkins
depth of field and Hyperfocal distance « 1 2 »	brett.cooper76@gmail.com	15	1039	January 10, 2013, 08:55:06 AM by brett.cooper76@gmail.com
Best Case ISO	KeithB	0	1076	April 28, 2011, 07:21:06 AM by KeithB
Why not more wide angle zoom?	Patibo	2	1088	February 11, 2012, 02:03:50 PM by Glenn NK
How does microfocus adjustment work?	Frank Kolwicz	1	1097	August 08, 2012, 02:36:36 PM by KeithB
Image Resolution enhancement	KeithB	1	1150	February 01, 2011, 08:17:23 AM by emanresu
Mining T-Stop Data from DxO	KeithB	1	1180	October 27, 2010, 10:45:17 AM by Bob Atkins
Problem with manual focussing	Frank Kolwicz	5	1180	October 10, 2011, 08:51:45 AM by KeithB
"Blueprint" a lens?	Frank Kolwicz	3	1241	September 21, 2011, 01:14:17 PM by Bob Atkins
a couple of questions regarding GND filters	emanresu	4	1327	February 01, 2011, 08:05:44 AM by emanresu
Telextenders versus cropping and quality	Frank Kolwicz	3	1414	June 28, 2011, 10:38:42 AM by KeithB