Technical Questions on Photography and Optics

Subject	Started by	Replies	Views	Last post
Sensor size comparison	Frank Kolwicz	3	5789	January 06, 2013, 02:39:32 PM by Bob Atkins
Sensors, and Bit Depth, what might be next	mjperini	5	7625	January 30, 2014, 02:38:24 PM by mjperini
Sigma VS Canon Telephot Comparison Question	Tallyther	1	4652	January 10, 2010, 10:19:43 PM by Bob Atkins
Solved: all those problems with the 500/4.5 and 5dII	Frank Kolwicz	0	4210	August 10, 2012, 06:24:30 PM by Frank Kolwicz
Spherical aberration and focusing	mike_tee_vee	2	8846	February 27, 2009, 12:47:58 PM by klindup
sRAW and how it is implemented?	509	2	12436	August 28, 2008, 10:07:33 AM by 509
Statement in Luminous Landscape	KeithB	1	5269	August 09, 2013, 04:16:09 PM by Bob Atkins
Tamron 18-250, not really 250. Really not 250.	winniv	2	7683	September 16, 2009, 10:50:27 PM by winniv
Tamron, Sigma Lens	Beachduffer	1	5333	January 18, 2010, 04:07:08 PM by Bob Atkins
Telescope Mounts for Cameras	klindup	1	4634	June 13, 2013, 01:39:39 PM by Bob Atkins
Telextenders versus cropping and quality	Frank Kolwicz	3	7180	June 28, 2011, 10:38:42 AM by KeithB
test chart; inches or centimetres?	jpmfc46	1	8170	August 26, 2008, 11:19:32 AM by Bob Atkins
Testing an old flash for voltage	KeithB	9	15733	December 02, 2009, 01:27:22 AM by nikonian
Testing Old FD Lenses	SidSP	2	7096	July 28, 2009, 03:12:39 PM by SidSP
The Age Old Question - Lenses	Rikster71	14	12056	February 11, 2010, 10:30:55 AM by Bob Atkins
The Cost vs. Performance Dilemma of Choosing a Circular Polarizing Filter	dppollet	3	15975	May 12, 2009, 12:38:44 PM by KeithB
The old 20D	Paula	1	4737	January 22, 2010, 10:52:04 AM by Bob Atkins
Too much fill flash	olyduck	1	7608	May 02, 2009, 05:21:13 PM by Bob Atkins
Viewfinder brightness limit	KeithB	3	6382	April 21, 2011, 07:37:21 AM by KeithB
What physical/optical attributes determine the max aperture of a lens?	emanresu	10	14475	November 04, 2009, 08:54:38 PM by emanresu