Sony A7 - Whats wrong with the pictures?

[fikkser]

Both pictures are taken at the same time. The crops are a bit inconsistent but it shows from the top to the bottom of the picture.

Can someone explain the yellow cast/line/thing?! Looks like the white balance is off in a part of the picture... it's under fluorescent, but never seen anything like it. Taken a lot of pics in this room before without that problem.

What's weird is that the yellow is in the bottom on pic 1 and in the top on pic 2... :/

Can I trus this camera?

ISO 6400.

[hasan]

which lens?

[fikkser]

99% Sure it's with Pentax FA 43. kiwi adapter.

[philslizzy]

Is it perhaps 'strobing'?

Fluorescent lights flash at a certain frequency, if your shutter speed was at the same speed as the frequency of the lights it could cause this problem. The Sony has a vertical shutter, the colouring is consistent with that.

I'm no expert on frequencies or what shutter speed could cause this interference, but I have seen similar before. I've had it happen on video with fluorescents and LED's.

[fikkser]

Thanks for the answer.

It sounds reasonable. Had too short shutter speed when shooting, that probably made it worse.

[Nordentro]

Electricity in Europe has 50 oscillations per second. Therefore shutter speeds that can not be divided and multiplied at 50 and result in whole numbers cause flickering on film and partially illuminated individual images. Led light bulbs as opposed to incandescent bulbs that have a delay which smooths out fluctuations goes on and off 50 times per second. Many LED bulbs have their own control which strikes 120 times per second.

So there is probably nothing to worry about as this is a well known challenge for both stills and video