FS7: Cine EI Slog 3 vs. Custom Hypergamma 7

[broughtonfilm]

So many thing wrong with Alister Chapman's articles on this from what I can tell. It assumes using LOG requires that you expose with the manufacturer's specs for ISO and exposure, and it seems to conflate CineEI and Log...

Only thing correct about that in my mind is that if you don't mind all the downsides of a 1D LUT and the locked in lower DR range and specific DR distribution of HG then yes HG may be better.

His articles completely forget that you can forget about Sony's ridiculous log ISO rating system and get exactly the same performance from log as with HG. Yes if your scene has only 6 stops of range maybe a 14 stop log range is overkill but in many cases you will still want the range in low light since light sources are that much more likely to blow out relative to the rest of your scene, and you can always just use the same gain as you would have used on HG and not waste any highlight range in your LOG, and still have the flexibility of LOG in post.

Please do let me know what you think my specific misconceptions are, because I don't see any brought up by Alister's articles that change my thinking since his system introduces many caveats that I would not accept.

I really don't feel like I have a chance in engaging in a conversation with you, you already said both Alister's articles are almost entirely wrong, so what do I know? Instead you are claiming that applying gain to slog gamma in Custom mode does not affect dynamic range (wanted to send you another link to Alister's article that talks specifically about it but I feel discouraged) and that Sony's "ridiculous" Cine EI system exists only to make things more complicated.

Speaking of other misconceptions - I'll just say that it seems that you misunderstood the OP's question and missed the point of this discussion altogether. Discussion and the question was about slog3 / slog2 in Cine EI vs Hypergamma 7. You talk about slog gamma on its own (in custom mode), forgetting (or misunderstanding ) benefits that come from using it in conjunction with (according to you "ridiculous" ) Cine EI system.

 

[nyvz]

I really don't feel like I have a chance in engaging in a conversation with you, you already said both Alister's articles are almost entirely wrong, so what do I know? Instead you are claiming that applying gain to slog gamma in Custom mode does not affect dynamic range (wanted to send you another link to Alister's article that talks specifically about it but I feel discouraged) and that Sony's "ridiculous" Cine EI system exists only to make things more complicated.

Speaking of other misconceptions - I'll just say that it seems that you misunderstood the OP's question and missed the point of this discussion altogether. Discussion and the question was about slog3 / slog2 in Cine EI vs Hypergamma 7. You talk about slog gamma on its own (in custom mode), forgetting (or misunderstanding ) benefits that come from using it in conjunction with (according to you "ridiculous" ) Cine EI system.

Why do you keep saying I called Sony's CineEI system ridiculous? It's super useful though it would be great if it also supported variable hardware gain. I only called Sony's ISO rating system ridiculous. In my experience few people actually expose SLOG2/3 at ISO2000 as it gets pretty noisy for a base rating, yet Alister's article seems to take it as the only correct way to shoot. Not to mention their very odd and confusing middle grey specifications for SLog2 (less relevant here). You may want to re-read the my post which you quoted. Please don't take it so personally, I'm just trying to clarify and fill in some points that I think are particularly relevant to the OP that I don't think the articles you linked cover and in fact seems to obscure. I'd be happy to engage in conversation if you wanted to respond about any one of my specific points.