A7s2 vs Canon C300 Mark II skin tone test - wow!!!

[Nicholas Natteau]

I just came across an amazing youtube video where someone did a side by side comparison of the Sony A7sII and the Canon C300 Mark II shooting skin tones. What amazed me was how natural looking the skin tones were coming out of the A7sII given the fact that no LUTs were applied in post, just a little tweaking in Premiere's Lumetri Color window in under 2 minutes. A7sII settings were Slog2, S-Gamut Cine, Saturation dialed up to +16.

The Sony A7sII didn't exhibit the same detailed skin texture as the Canon C300 Mark II and seemed slightly less sharp. The tester explains that this is due to the fact that the A7s2 is recording to a very compressed codec - Sony XAVCS 8bit 4:2:0 100 Mbps vs Canon's XF-AVC 10-bit 410 Mbps. The A7sII also took look longer to get back into focus as the subject moved around a lot in the frame.

Can someone reading this do a similar test, but this time recording skin tones on the A7sII to an external recorder like the Shogun or Ninja Assassin using Pro Res 422 HQ (707 Mbps), 422 (471 Mbps), or even 422 LT (328 Mbps). Very curious to see how much more natural looking and detailed skin texture would be using an external recorder vs the internal XAVCS codec.

I just upgraded to the A7sII, but I don't have access to a Canon C300 MKII or an external recorder. But if I did, I'd want to do this test right away.

 

[Samuel H]

It was posted in this thread, where you'll see that it was shot by jcs, fellow dvxuser

 

[starcentral]

screenshots look really great.

Has anyone confirmed the actual color science in the A7sii? Is it s-gamut or s-gamut3.cine. I don't believe there is such a thing as s-gamut.cine

cheers

 

[greytail]

What lens did you use?

 

[paulcurtis]

screenshots look really great.

Has anyone confirmed the actual color science in the A7sii? Is it s-gamut or s-gamut3.cine. I don't believe there is such a thing as s-gamut.cine

cheers

Hi Dennis,

SGamut.cine defines the primaries to create a smaller space with the idea being that the smaller space reflects the cameras native space better. This is a good thing because with a wide gamut in 8 bit the steps defining colour can be quite large. The same 8 bit steps with a smaller space gives more tonality, although you will be hard pushed to actually tell the difference.

We can't get the native space through movies (only via RAW) so we're left choosing a suitable space for our movies. The overall science is much better than the A7s and now it doesn't actually make that much difference. The space you choose should depend on your post workflow more than anything else...

cheers
Paul

 

[starcentral]

What I'm saying is sony has only made released 3 color sciences to my knowledge: S-Gamut, S-Gamut3.Cine, S-Gamut3. So I think the posters reference to 'S-Gamut.cine' is an error. ie. no such color science exists.

 

[Samuel H]

Yes, I think it's S-Gamut3.Cine. Go to his thread, he'll probably answer there

 

[Nicholas Natteau]

Sorry everyone, my mistake regarding s-gamut.cine. I stand corrected.

 

[felner4k]

Great video.. but would be fair to put the same lens on the a7sii with a metabones adapter. I get a lot more sharpness on skin tones.. because i only use canon glass..