Color peaking: Sony A7II

[jormungandr]

Hi Community! 

I've been having problems recording video with my Sony A7II. Yesterday we did a session on stage with a band, and the blue lights completely destroyed the footage. As you can see in the photos, it's really noticeable.

 

Settings: ISO 1600, F. 4, S. 60, Slog2, XAVC S HD, 25 fps. I was using a Metabones adaptor to EF lens, and a Canon 18-135 IS STM. I'm concerned about the blue range, creating that terrible burned effect. 

Before the gig started, we noticed about it and kept Cinema as Color Mode, but put the Saturation at -15, Color Phase at -7 and Blue range in -7 inside Color Phase. As you can see, didn't work at all. 

 

 

From another angle, a Sony a6300 was recording with a Sigma 18-35, ISO 6400, F. 1.8, S. 200, Slog2, XAVC S HD, 100 fps. As you can see, the recording is completely different and well balanced. 

 

 

This also happened to me in the same venue, equal light conditions, using a Sony A7S II. Can somebody provide me a clue to fix it in the future? Is it normal considering that the Sony A7 II and A7S II are more expensive and full frame? 

 

Thanks in advance! 

[MikeOfBonsall]

White balance. Shoot a custom WB from a white card in that blue light. Use your eye to check it worked. Look at the lettering on the wall - that's probably white so set WB so that looks white in the monitor.

[addicted2light]

My guess is that you over-saturated (or, better, overexposed) the blue channel.

 

When setting up the exposure, take a test shot or two and check the color histogram (not just the regular, "all colors", one).

 

If one of the color channels is too far to the right this is what will happen.

 

If I were you, in the kind of light you find at concerts and such, I'd rather expose conservatively (i.e. underexpose a bit) and deal with the added noise in post (added noise because you will have to raise your exposure in post), than trying to nail the exposure but risking to burn one of the color channels.

[ioni9511]

hi! i had the same issue recently as i was unaware of this... is there any way to solve it in post? if so, how?