March 24, 2016 at 9:51PM, Edited March 24, 10:01PM

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Question for all A7sii users regarding noise. Defective camera?

I've been doing all sorts of tests with my Sony A7sii. Obviously I was excited to use it in low light. Unfortunately, I have seen that my camera has the horizontal noise issue when using Slog2 and Slog3. This is caused when going from 8,000 to 10,000 but once I go over this, the noise vanishes. It appears to be a well known bug. This is the one issue with the camera.

The other issue that I am more concerned about is the very fine noise that is apparent at ALL iso numbers. The noise is very small and grain-like and while recording in a dimly lit room, I can see the noise from 100 iso to very high numbers. It doesn't seem to go away at all, just the image becomes lighter as I go up in iso number. I have done many tests in all picture profiles, and they all more or less have this same issue. While it is mostly apparent in the darks of the image, it actually covers across the whole image. To anyone that has used the A7sii... surely this is not normal?

This comes as a surprise because watching videos on Youtube (compression aside) they appear very clean. Even on videos that state no noise reduction was used. I have also read and watched countless reviews hearing people rave about how clean the image looks even up past 10,000 and even 20,000 iso. The image, in normal well lit room is fine, I don't notice the noise here. But when in a semi dark poorly lit room (something I thought the a7sii would still be able to handle easily) I can see this grain - it isn't blocky like the usual noise, they are very tiny particles. It resembles a slight grain effect that someone would apply in post production.

A side note: I had to order the camera in and it arrived in store a lot sooner than expected. It also didn't have the Sony seal of approval sticker (Not sure if the Sony a7sii boxes come with this? Just assumed because my 28-70mm FE lens box from another store had a sony seal) - Do you think that they may have just given me a returned/refurbished camera?

This was a lot of money for me and at the moment I am pretty disappointed. I'm not sure if I should return the camera and get a replacement....Or am I doing something wrong? Any ideas?

5 Comments

I am curious what kind of recordings do you do needing a sensitivity of 10,000 ISO or over?

March 25, 2016 at 9:27AM

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Cary Knoop
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Situations where you can't light properly, such as documentary.

March 25, 2016 at 10:00AM

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Did you find more information about this? The stuff I'm getting from my camera doesn't match the clean footage I'm finding online.

Naythan Smith

August 23, 2016 at 1:58PM

Can you give me one or two examples?

March 25, 2016 at 11:34AM

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Cary Knoop
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Without seeing examples it's hard to say if there's truly a problem with your cam.
One of the main perks of the Sony at high ISO is that the color and detail aren't lost, not that there's no noise. Try uploading some of your footage to youtube and you'll see that the compression does actually eliminate a lot of it. I've never shot perfectly "noise free" footage on my Sony at any ISO. Maybe you just had expectations that weren't quite realistic.

March 27, 2016 at 9:48AM, Edited March 27, 9:49AM

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May 2, 2016 at 1:13AM

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Stelios Kouk
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