1/3" CCD...what's 1/3 " at DVinfo.net

Steve Siegel · February 22nd, 2005, 06:47 PM

Here's a simple question. On a 1/3" CCD, what is 1/3 of an inch?

Is it the width, the height or the diagonal?

Steve Siegel,
Miami

Boyd Ostroff · February 22nd, 2005, 08:32 PM

Actually it's none of the above. It's a nominal size (based on diagonal measurement) that really has little to do with 1/3".1/3" CCD's have a 6mm diagonal. See the following:

http://www.dpreview.com/news/0210/02...ensorsizes.asp
http://www.dvinfo.net/conf/showthrea...threadid=32416

Steve Siegel · February 23rd, 2005, 05:24 PM

A straightforward and very helpful answer. I never would have found that. Thanks a lot.

Steve

Douglas Habib · February 23rd, 2005, 07:40 PM

Boyd, you 'da man!!!!! Thanks!! (Never knew what or why, just used it as a measurement standard; don't we all?????)

Boyd Ostroff · February 23rd, 2005, 08:32 PM

Glad I could help. This is a topic which always baffled me as well. The interesting thing which may or may not be clear from that article is that the vacuum tubes which are the basis of these sizes only went down to about 1/2". There never was a 1/3" or 1/4" vacuum tube. So as companies developed these smaller CCD's they could call them pretty much anything they wanted since there was no precedent. It's handy to be able to make up your own standards....

February 22nd, 2005, 06:47 PM	#1
Steve Siegel Major Player Join Date: Nov 2001 Location: Albuquerque, New Mexico, USA Posts: 840	1/3" CCD...what's 1/3 " Here's a simple question. On a 1/3" CCD, what is 1/3 of an inch? Is it the width, the height or the diagonal? Steve Siegel, Miami

February 23rd, 2005, 07:40 PM	#4
Douglas Habib Regular Crew Join Date: Nov 2003 Location: LV, NV Posts: 50	Boyd, you 'da man!!!!! Thanks!! (Never knew what or why, just used it as a measurement standard; don't we all?????) __________________ Molon Labe! AOC (Ancient Order of Curmudgeons)

February 22nd, 2005, 08:32 PM	#2
Boyd Ostroff Wrangler Join Date: Dec 2002 Location: Mays Landing, NJ Posts: 11,802	Actually it's none of the above. It's a nominal size (based on diagonal measurement) that really has little to do with 1/3".1/3" CCD's have a 6mm diagonal. See the following: http://www.dpreview.com/news/0210/02...ensorsizes.asp http://www.dvinfo.net/conf/showthrea...threadid=32416

February 23rd, 2005, 05:24 PM	#3
Steve Siegel Major Player Join Date: Nov 2001 Location: Albuquerque, New Mexico, USA Posts: 840	A straightforward and very helpful answer. I never would have found that. Thanks a lot. Steve

February 23rd, 2005, 08:32 PM	#5
Boyd Ostroff Wrangler Join Date: Dec 2002 Location: Mays Landing, NJ Posts: 11,802	Glad I could help. This is a topic which always baffled me as well. The interesting thing which may or may not be clear from that article is that the vacuum tubes which are the basis of these sizes only went down to about 1/2". There never was a 1/3" or 1/4" vacuum tube. So as companies developed these smaller CCD's they could call them pretty much anything they wanted since there was no precedent. It's handy to be able to make up your own standards....