October 6, 2015 at 12:34AM

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Sony A7s Vertical Line Issue

Hi all,

Apologies if this topic has been covered elsewhere but I've been searching far and wide across the web to find someone else who's experiencing this same issue. So far no luck!

About a month ago I bought a refurbished Sony A7s from the Sony outlet. I wanted to retain my Canon glass with the camera so I purchased the Commlite EF - E mount smart adapter after reading some good reviews on this site.

All is working well however when I push my ISO I start to get some weird looking effects that aren't matching up to what others are seeing at even higher ISO's. Green and purple vertical lines appear on the screen and grow into what looks like a posterized 3 colour image (Black, Blue and Green) as you push the ISO even further.

This is particularly evident when set to 120FPS as can be seen in the two screenshots below. I'm using my Canon 24-105mm lens and this seems to happen in both Full Frame and APS-C :-

http://s27.postimg.org/4n9j8wdur/IMG_9705.jpg
http://s27.postimg.org/lp2dazspv/IMG_9706.jpg

Is this something I'm doing wrong or is it a fault with the camera / adapter / lens? Any help would be hugely appreciated.

7 Comments

So you have the same problem when shooting 24 fps, 25fps, or 30 fps ?

October 6, 2015 at 12:30PM

9
Reply
Guy McLoughlin
Video Producer
33052

Thanks for your comment.

I am indeed having trouble at the other frame rates too but only at high ISO's and quite sporadically.

The 120fps issue was more apparent as the ISO was 4000 which in reality should be no problem for the A7s surely?

October 6, 2015 at 2:14PM

7
Reply

This does not look normal. Have you tried contacting Sony about the issue ?

It's possible that your refurbished camera is defective.

October 6, 2015 at 2:54PM

7
Reply
Guy McLoughlin
Video Producer
33052

I haven't but I will do now. I was just checking just in case it was something that I was potentially doing wrong.

Thanks for your help.

October 6, 2015 at 2:59PM

0
Reply

Do you have the LiveView displaying proper exposure? That's the only thing I can think of besides there being a problem with the camera. There is a setting for the monitor to due auto-exposure until you start recording I think. If you're in a dark area the preview will be at max ISO even though the actual exposure might be very dark.

October 7, 2015 at 6:45PM

5
Reply
Jeremiah Kuehne
Filmmaker
1044

I'm shooting in movie mode so the Live View setting is permanently on with no option to change that.

I switched over to Manual mode to test it and the weird lines / green effect started as low as ISO 8000.

October 8, 2015 at 2:44AM

14
Reply

Hi Jon!, That's really wierd, I think you should contact Sony because thats not normal at all!

October 8, 2015 at 9:23AM

0
Reply

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