Technical Questions on Photography and Optics

Subject	Started by	Replies	Views	Last post
Canon IS effectiveness: amplitude and frequency	Frank Kolwicz	2	65	May 20, 2013, 08:51:44 AM by Frank Kolwicz
Extension Tube Question EF 70-300 IS	rixtix	4	122	April 30, 2013, 05:04:45 PM by rixtix
Magnification APS vs Full Frame	KeithB	3	119	April 23, 2013, 12:59:26 PM by Bob Atkins
Long Lens Apertures	KeithB	3	222	April 06, 2013, 02:29:48 PM by Bob Atkins
depth of field and Hyperfocal distance « 1 2 »	brett.cooper76@gmail.com	15	1026	January 10, 2013, 08:55:06 AM by brett.cooper76@gmail.com
Sensor size comparison	Frank Kolwicz	3	354	January 06, 2013, 02:39:32 PM by Bob Atkins
5dII microadjust, 1.4x and taped contact pins	Frank Kolwicz	5	1731	August 13, 2012, 11:32:17 PM by Frank Kolwicz
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
Canon 5DII and 500L/4.5 still has focus problem « 1 2 »	Frank Kolwicz	19	2792	August 10, 2012, 06:14:55 PM by Frank Kolwicz
How does microfocus adjustment work?	Frank Kolwicz	1	1091	August 08, 2012, 02:36:36 PM by KeithB
Exposure Time Limitations on a Canon 40D	Tallyther	1	1032	March 26, 2012, 09:59:31 PM by Bob Atkins
Lens camouflage?	Frank Kolwicz	14	2811	March 21, 2012, 02:45:59 AM by klindup
Why not more wide angle zoom?	Patibo	2	1087	February 11, 2012, 02:03:50 PM by Glenn NK
depth "compression" with long FL lenses	donS	4	4948	January 06, 2012, 09:46:16 PM by Bob Atkins
A Prime to Better the Kit Lens ?	Flash	1	857	October 24, 2011, 05:05:23 PM by Bob Atkins
5dII and EF500/4.5L AF micro adjustment fails	Frank Kolwicz	6	1630	October 17, 2011, 05:56:43 PM by Frank Kolwicz
Lens Genealogy	KeithB	0	882	October 11, 2011, 12:06:00 PM by KeithB
Problem with manual focussing	Frank Kolwicz	5	1175	October 10, 2011, 08:51:45 AM by KeithB
"Blueprint" a lens?	Frank Kolwicz	3	1236	September 21, 2011, 01:14:17 PM by Bob Atkins
EOS 1.4 tele on FD500/4.5L?	Frank Kolwicz	5	1796	August 13, 2011, 09:39:16 PM by Frank Kolwicz