Gain to ISO Conversion w/ latest firmware

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patc124

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Gain to ISO Conversion w/ latest firmware

PostTue Oct 04, 2022 4:55 pm

Hi there,

I've recently updated our ATEM Control Panel firmware and looks like we've got some new features, including some adjustments on the Gain/ISO values. Would you be able to provide a conversion chart from GAIN to ISO values? I have a BMD ecosystem of switchers, shader panel and cameras (URSA Mini Pro 4.6K G2, URSA Broadcast G2 and the BMPCC 6K) and would like to have every camera start at the correct baseline on the ISO scale before I make adjustments on the iris levels. Thanks.
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Dave Del Vecchio

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Re: Gain to ISO Conversion w/ latest firmware

PostWed Oct 05, 2022 5:13 am

There is a discussion of the mapping of ISO to gain in this thread:
viewtopic.php?f=2&t=154758

The URSA Broadcast G2 and the BMPCC 6K share the same sensor and as a result have the same gain/ISO range. The URSA Mini Pro 4.6K has a different sensor which has an ISO range of 200 to 3200 ISO so you won't be able to push the gain quite as far as on the other two cameras (which go up to 25600 ISO).
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patc124

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Re: Gain to ISO Conversion w/ latest firmware

PostWed Oct 05, 2022 2:29 pm

Thanks for the intel, Dave! Appreciate it!

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