topic Betreff: ISO noise reduction by multiple exposures on A7r4 in Alpha & NEX interchangeable lens cameras

ISO noise reduction by multiple exposures on A7r4

zolliejunk — Sun, 08 Nov 2020 10:33:00 GMT

Dear all,

I use a good old Sony rx1 mk2 and the feature in subject line results in superb shots even in extremely low light situations.

However, I cannot seem to find this feature on my new A7r4. Is it renamed, well hidden or simply not available?

Thanks a lot for your suggestions.

Betreff: ISO noise reduction by multiple exposures on A7r4

Peter_S. — Mon, 09 Nov 2020 07:33:36 GMT

Hi zolliejunk,

These functions are available with your A7RM4 as well. You can find them in the menu named as:

Long exposure noise reduction (https://helpguide.sony.net/ilc/1930/v1/en/contents/TP0002728100.html)

High ISO noise reduction (https://helpguide.sony.net/ilc/1930/v1/en/contents/TP0002711864.html)

Cheers

Peter

Betreff: ISO noise reduction by multiple exposures on A7r4

zolliejunk — Mon, 09 Nov 2020 10:23:46 GMT

Hi Peter,

Thanks a lot for your help.
I took a look and found it, however with Sony A7R4 this is not based on
taking multiple exposures like with Sony RX1 mk2, but some other approach I
am not familiar with the efficiency of.
Any clue?

Best regards,
Zoliie

Re: Betreff: ISO noise reduction by multiple exposures on A7r4

Win_88 — Tue, 17 Nov 2020 09:53:28 GMT

Hi @zolliejunk

I've been comparing the description of the feature on both cameras (in Sony's online help guide), but I can't see what would indicate that a different mechanism is used. So may I ask you where that was indicated?

As far as I can see, High ISO NR is exactly the same on both models.

DSC-RX10M2: https://helpguide.sony.net/dsc/1540/v1/en/contents/TP0000823559.html

ILCE-7RM4: https://helpguide.sony.net/ilc/1930/v1/en/contents/TP0002711864.html

Win_88