Set of 20 Cube LUT’s for the Sony A7S.

I’ve been doing a lot of work on shooting SLog-2 with the A7s. I realised almost straight away that a set of LUT’s for this camera would really help speed up my grading and testing. In addition as the camera is only 8 bit I have found that I am actually getting the best results from the Slog-2 if I over expose it just a little bit, depending of course on the scene. So I created a set of LUT’s that includes compensation for shooting at the nominal correct exposure as well as either 1 or 2 stops over exposed. In all there are 20 LUT’s in two sets. One is Rec-709 based LUT’s and the other Filmic LUT’s to act as starting points for further grading.

I am in the process of creating the complete workflow and SLog-2 guide for the A7s which I should be publishing later next week which will have much more information on how to use these LUT’s. But in the mean time here are the LUT’s if anyone want’s to play (and I would like feedback on what you think of them).

The LUT naming goes something like this:

AC A7S  709(800) ZERO

AC  (That’s me!).    A7S (The Camera).

709(800) = Output gamma or style.     ZERO = Exposure off set.

The exposure offset refers to the number of stops the footage is over exposed by relative to the normal SLog2 exposure level of Middle Grey at 32% and 90% white at 59%. ZERO menas no exposure offset. 1STOP would be used when the SLog2 was exposed 1STOP over and in this case the LUT then shifts the exposure back down 1 stop to compensate.

709 = Vanilla Rec-709, very contrasty, but limited highlight response and hard clip of over exposure.

709(800) = Rec-709 gamma with 800% (high) dynamic range. Will be slightly low contrast but deals much better with over exposure or bright highlights than vanilla 709.

Film-Like1 = An extended range gamma with highlight roll off (+400% range), slightly de-saturated, slightly more film like color (small red/yellow removed).

Filmic2 = Extended range low contrast gamma with very good over exposure handling. Slightly de-saturated. Good grading start point.

Filmic3 = Similar to Filmic2 but a little more contrast at the expense of a little less highlight roll off.

Click on the links below to download the LUT sets. PLEASE DO NOT HOST THESE ELSEWHERE OR DISTRIBUTE THESE ELSEWHERE OR VIA ANY MEANS OTHER THAN A LINK TO THIS PAGE.

Alisters A7S 709 LUTS v2

Alisters A7S Filmic LUTS set1
If you find the LUT’S useful, please consider buying me a beer or a coffee.


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5 Responses to Set of 20 Cube LUT’s for the Sony A7S.

  1. Pingback: Set of 20 Cube LUT’s for the Sony A7S. | roberto cimatti

  2. miriam says:

    hi! I just bought sony a7s camera and last night I went to the beach to tested it. When I arrived at home and passed the files to the computer when I saw them I noticed they have much noise in my videos…I had put ISO at 3200, using picture profile pp7 (SLog2). I think I haven’t got a good profile put into the camera but I don’t know. Can someone help me please? Thanks!?

    • alisterchapman says:

      Without knowing more about how you set your exposure and how you handled the footage in post production it’s impossible to diagnose why your picture are noisy. The default PP7 gives excellent results when used correctly. Did you read the guide to S-Log2 exposure?

  3. kirill says:

    First impressions: it’s very close to what I get when I use the BMD to rec709 LUT but a little bit with a purple tint (specifically using the 800% 1 over version)

    Filmic 3 strikes me a bit like a bleach bypass filter.

    (I would post screens, but seems I can’t here)

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