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Canon EOS Crop Sensor for HD
APS-C sensor cameras including the 80D, 70D, 7D Mk. II, 7D, EOS M and Rebel models for HD video recording.


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Old November 19th, 2009, 01:01 PM   #1
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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.
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Old November 19th, 2009, 02:14 PM   #2
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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.
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Old November 19th, 2009, 06:49 PM   #3
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Quote:
Originally Posted by Dror Levi View Post
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 View Post
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.
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