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-   -   ISO rating (https://www.dvinfo.net/forum/canon-xl-h-series-hdv-camcorders/79011-iso-rating.html)

Christopher Glaeser November 6th, 2006 02:59 PM

ISO rating
 
Has Canon published or has someone measured and posted the ISO sensitivity of the XL-H1 sensor at each gain setting?

Best,
Christopher

Barry Green November 6th, 2006 09:35 PM

I don't know if Canon has published their figures, but when we tested it we found the base sensitivity is 200.

Each 6dB of gain = a doubling of perceived sensitivity, so at 6dB = 400, 12dB = 800, etc.

Jonas Nystrom November 7th, 2006 01:06 AM

Hmmm... according to another forum it is 320.

John Richard November 7th, 2006 09:54 AM

We were having trouble determining which was the exact ISO for using an incident light meter. We were trying to keep our key/fill ratios on the actor's faces consistant.

It would be nice to know the correct ISO correlation for light meter use.


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