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Yeah, I really can't think of a lot of reasons to film with the A7s over the A7iii. You might do a little better in low light, but it'll be lacking in pretty much every other way. Better rolling shutter, battery life, auto focus, IBIS (vs. None at all), color, less prone to overheating, etc. You used to have to really rig the A7s (and the A7sii) up to get the most out of them, especially when it came to battery life. One of the reason the production company I was working with at the time ended up selling theirs and going with the GH4 was because that, the rolling shutter, and overheating. That low light though, it blew our minds at the time. Low light across the board has improved so much, but 10 years ago it was voodoo magic!

Yes, raw stills; I think the only difference is that the A7s only offers compressed raw whereas the A7iii has the option of uncompressed (which I use), but in practice I haven't noticed a difference; if I were shooting landscapes I might see a difference but for concert and dance photography it hasn't been an issue for me. I've taken thousands of raw photos at events like this with my A7s and have been happy with the results. When the lighting is really poor there's always the option to convert to B&W, which I often do. One big advantage of the A7s for stills is that I can take more than 1,000 photos and still have plenty of room on my SD card, whereas the same-size card on my A7iii will be close to full at 1,000 photos. And stills are much less demanding on the battery; I shot 1,200 photos at a wedding reception on my A7s earlier this month and the battery wasn't even halfway drained by the end. Video drains the A7s battery quickly; it looks like I'd have no more than 20-25 minutes. Sony made a supplemental battery grip for the A7s but I think on the A7iii I'll be able to get by with the internal battery for the short amount of video I'll be shooting. I was planning to use my rangefinder lenses for the stills, which is what I typically use at concerts and dances for their more "magical" rendering and bokeh; I have a good selection of fast M- and LTM-mount lenses, a few of which also have unclicked aperture rings, and all but the 28mm perform well on Sony. The only problem, though, is that I don't have ND filters for most of those lenses, and step-up rings aren't even available for some of the vintage ones because their filter threads are in long-obsolete sizes. So I might end up using my rangefinder lenses only for the photos (I generally won't need ND for those) and my Minolta Rokkor lenses for video; I have step-up rings and ND filters for all my Rokkor lenses. I also have one e-mount f0.95 lens that I sometimes use when taking photos at dances, and can use my ND filters on that as well so will bring it along.

I think that's wise. My recollection was that the A7s2 was the "low light king", and that the A73 had similar/same low light performance. Before I bought my GH5 I was also considering the A73 and the low-light and other video features were a solid offering. The footage online looked very impressive too, from those that knew what they were doing. Also, the colour science on the early Sony cameras was known for being difficult, but IIRC they significantly improved it over the models, and the A73 was much improved from the earlier models, so you'd likely have a much easier time with that footage in post rather than from the A7s. With the A7s you'd probably be taking RAW stills? If so, the colour science doesn't really matter as there's no baked-in look, and you should have robust files with lots of leeway to colour them in post, including any crazy WB issues if you happen to take a shot when a very coloured light happens to be the one illuminating the scene. Have you got lenses sorted for the two?

Just to get back on topic... The trend isn't limited to photo, video or filmmaking forums, it's all forums... A friend recently reminisced how he used to talk to fans of his favourite band online all the time and do meet-ups. The band's unofficial forum was a hub for this, but now it doesn't even exist. It is just people on a Facebook group now, posting pics and pressing like. This is due to smartphones and the fact they lack a proper keyboard for longer form content and interactions. Plus a few social media apps have replaced .com websites. Hope to see a reversal of it as this is not using the internet to its true potential. People should put the phone down and get back online via a laptop or desktop machine instead!

The power efficiency of one chip can be very different from the efficiency of another due to node size and to what degree it's processing is hardware accelerated. Maybe Sony uses a relatively large (= cheaper) node size or the chip has less optimized hardware for the processing it needs to do. There might also be more sample variation with Sony as the cooling efficiency can depend a lot on how well various parts are thermally connected during assembly. There is always some margin of error on soldering points, application of paste and lubricants during assembly and if this margin is larger than what the designers assumed you get clear sample variation.

Ah, the YouTube thumbnail changed as they often do. With the read play button over the title, it looked like it read ‘overeats’ 😉