Iso 800, 500? at DVinfo.net

Craig Hollenback · February 18th, 2008, 07:04 AM

Some articles say the EX1 is ISO 800, others, such as the recent release from B&H claim 500. Does anyone have an accurate number on this and if so is at 0Db gain?
Thanks, Craig
www.KeysTV.com

George Kroonder · February 18th, 2008, 07:55 AM

Adam Wilt rates it as:

I determined the sensitivity of the camera to be:
• ISO 400 in 1080p modes
• ISO 800 in 1080i modes (just as you’d expect: with dual-row summation, you get twice the sensitivity), and
• ISO 500 in 720p modes.
Apparently Sony is picking up some gain during downsampling to 720p, analogous to what happens in dual-row summation.

George/

P.S. Suggested reading: Adam's update of Feb. 17th to the original article.

February 18th, 2008, 07:04 AM	#1
Craig Hollenback Major Player Join Date: Mar 2003 Location: Key West Posts: 247	Iso 800, 500? Some articles say the EX1 is ISO 800, others, such as the recent release from B&H claim 500. Does anyone have an accurate number on this and if so is at 0Db gain? Thanks, Craig www.KeysTV.com

February 18th, 2008, 07:55 AM	#2
George Kroonder Major Player Join Date: Jan 2008 Location: Utrecht, NL \| Europe 3rd Rock from the Sun Posts: 612	Adam Wilt rates it as: I determined the sensitivity of the camera to be: • ISO 400 in 1080p modes • ISO 800 in 1080i modes (just as you’d expect: with dual-row summation, you get twice the sensitivity), and • ISO 500 in 720p modes. Apparently Sony is picking up some gain during downsampling to 720p, analogous to what happens in dual-row summation. George/ P.S. Suggested reading: Adam's update of Feb. 17th to the original article.