db vs iso at DVinfo.net

Dror Levi · November 19th, 2009, 01:01 PM

Just wander if there is any translate.

All I want to know in other wards at what point (iso) i should use light on camera.

Daniel Bates · November 19th, 2009, 02:14 PM

At the point where the disadvantages of on-camera light outweigh the disadvantages of image noise from that particular ISO.

I routinely take my 5D to 1600 and 3200; rarely 6400, and almost never 12,800 if I can help it.

Daniel Browning · November 19th, 2009, 06:49 PM

Quote:

Originally Posted by Dror Levi

Just wander if there is any translate.

6db is one stop. Doubling the ISO setting is like increasing gain +6db. ISO 100 is most similar to (but the same as) 0db gain.

Quote:

Originally Posted by Dror Levi

All I want to know in other wards at what point (iso) i should use light on camera.

It's a subjective choice influenced by composition, white balance, spectral balance of the light, and picture profile settings. But I don't see what that has to do with your first question.

November 19th, 2009, 01:01 PM	#1
Dror Levi Major Player Join Date: Mar 2008 Location: Pembroke Pines FL Posts: 331	db vs iso Just wander if there is any translate. All I want to know in other wards at what point (iso) i should use light on camera. __________________ www.nostalgicFrames.com

November 19th, 2009, 02:14 PM	#2
Daniel Bates Regular Crew Join Date: May 2006 Location: Daegu, Korea Posts: 180	At the point where the disadvantages of on-camera light outweigh the disadvantages of image noise from that particular ISO. I routinely take my 5D to 1600 and 3200; rarely 6400, and almost never 12,800 if I can help it.