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ISO on the R5

Started 10 months ago | Discussions thread
Quarkcharmed
Quarkcharmed Senior Member • Posts: 2,713
Re: ISO on the R5

MarshallG wrote:

Quarkcharmed wrote:

MarshallG wrote:

Disclaimer: I’m only the messenger.

I’m at a trade show all weekly so I stopped in the Canon booth and spent a long time talking with one of their experts about the R5.

He then me that the R5 sensor slightly boosts voltage as you increase ISO, and it did so in one stop increments. Intermediate ISO changes are made post sensor read, so he said that you can get a cleaner image at a higher ISO setting that falls on a full stop boundary, than on an ISO setting which is between 1/3 to 2/3 stop lower.

Again, I’m just relaying what the man told me. Don’t flame me, I’m just reporting.

It's very easy to verify following this article

https://www.rawdigger.com/howtouse/iso-is-seldom-just-digital-gain

AFAIK it was true for some very old cameras but now most of the ISO range (except the 'extended' parts) is implemented through the variable analog gain.

Again, I’m only reporting what the representative from Canon told me (“You’re welcome”) and I have not looked at a bunch of bar charts to confirm his statement. I’m just telling you what he said.

Yes, I see it's a Canon rep's claim not yours, I'm just saying it's very easy to verify.

 Quarkcharmed's gear list:Quarkcharmed's gear list
Canon EOS R5 Canon EF 70-200mm F2.8L IS II USM Canon EF 24-70mm F2.8L II USM Canon EF 16-35mm F4L IS USM Canon EF 50mm F1.8 STM
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