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Nikon has officially announced the development of the Z9 - https://www.dpreview.com/news/7215673224/nikon-announces-development-of-flagship-mirrorless-z-9 From the dpreview news item:

...where he says it's HEVC (H.265), 4:2:0, 10-bit at 200 Mbps, which is the same as on the G9 (and I assume the GH5). So 10-bit 18 Mpixel stills... 🙂

If it's like the '6K photo' mode on my G9, the files are H.265, 10-bit, 4:2:0 at 200 Mbps (info below - from the VideoRedo editor - for 3:2, 30 fps capture), with AAC audio. It uses 'long-GOP' encoding, but the GOP is quite short, only 16 frames, with only has IDR and P frames (no B frames) according to VideoRedo. If you want to upload a short clip from the S5 (a few seconds is enough) I'll check the parameters for you.

From a earlier post in this thread (for video AF-C):

If you can live with M43, then add the Panasonic G9 to the list - 10 bit video support and excellent IBIS, with 1080p and 4k video quality comparable to the GH5 (albeit without All-I codecs and limited to 30 minutes - 10 min for 4k60 - record time). It's a bargain for what you get...around £700 used, £900 new in the UK at the moment.

I think a lot depends on your 'use case' - personally I don't need to focus-track people/faces or use shallow depth of field very often, and I find the G9 video C-AF to be perfectly usable for the sort of outdoors run-and-gun handheld filming that I do (as an amateur). It helps that I almost always shoot at 50p/60p which definitely makes DFD work better.

No - that's one of the main differences between the G9 and the GH5. There is a hack to temporarily remove the limit in this YouTube video - https://www.youtube.com/watch?v=0qzBWdaY634 - but I've not tried it as I've never found the 30 minute video limit a problem (or the 10 minute 4k60p limit). I usually film hand-held, and 10 minutes is a long time to hold a camera still anyway 🙂

That would be my suggestion too - better build and video quality than the G85, although if the budget is really tight the G85 is perfectly good camera (I own both of them, so can directly compare). ....Then the G9 is probably a better choice than the G85 due to better weather sealing & build quality. As a slightly 'off the wall' suggestion for harsh conditions, what about a used Olympus E-M1 mk 2 with one of the Oly 'pro' lenses e.g. the 12-40mm F2.8. Smaller and lighter than the G9, with excellent IBIS and 4k video capability (including 237Mbps DCI 4k at 24 fps), and phase-detect autofocus. The G9 has overall better video quality though (especially at 1080p).

....also if you need longer continuous recording (up to 30min) the 1080/60p is excellent quality - much better than the lower-end G-series cameras. I've used my G9 in the southern California desert sun, recording 4k/50p with no overheating issues or warnings at all.

Also note what omega1978 said upthread:

Have you got 'Continuous AF' enabled for video (this is separate from the stills AF setting) ? - see the 'Using AF (Video)' section in the S5 User Guide - it's on page 256 in the pdf I have.

Panasonic have released a minor firmware (bug fix) update for the S-series cameras - https://av.jpn.support.panasonic.com/support/global/cs/dsc/download/index4.html Description of changes:

...or a Panasonic G5 for very little more money (if we're going 'bargain basement' cameras). It has better on-board audio, better controls, a viewfinder, a tilt-swivel LCD, better battery life and is nicer to hold. I've owned both in the past. The only advantage the GF5 has over the G5 is the smaller size and the 130g lighter weight.

I own a G6, G80 (a Euro spec G85) and G9. Never used a G7 or GH5. Re. the G85 - it's a very good hybrid camera, but compared to the GH5 (and the G9) it uses the older 16MP sensor, has cropped 4k and noticeably inferior 1080p. It's a smaller, lighter and cheaper camera though, and I think it might make an excellent 'serious' but maybe less intimidating camera for your son. Also Panasonic have changed their colour science - for the better - over time, so it's probably going to be harder to match something older like a G7 to the S1. If you can live with the 30 minute (10 mins for 4k 60p) record limit, a G9 is cheaper than a GH5 and has better IBIS and autofocus, plus 10-bit video capability. The V-log L update can also be added to it.

There is an in-depth analysis of the M1 on Anandtech here - https://www.anandtech.com/show/16226/apple-silicon-m1-a14-deep-dive It confirms what the Apple presentation suggests (if you look very carefully at the diagrams/images) - the DRAM is not part of the M1 SoC itself, it's alongside it, with the M1 and DRAM placed very close together inside a single multi-chip package. Given the chips they've been designing for years (for iPhones & iPads), I assume that Apple have an (expensive) ARM 'architecture license' so they can design their own CPU cores that conform to ARM's architecture and instruction set standards. Some of the other big ARM-based chip suppliers do the same - it means they can design and produce chips that lower-level ARM licensees don't have access to, thus potentially gaining a competitive advantage.

Marla - is the problem that it doesn't re-focus at all, or that it doesn't focus on what you want it to? How close to the lens is the subject, when you bring it closer?

S-series firmware update details (mostly about new stuff for the S1 series, but a few things for the S5) - https://www.panasonic.com/uk/corporate/news/articles/panasonic-announces-host-of-firmware-updates-for-its-lumix-s-and-g-series-cameras.html

The Pana 85mm F1.8 is now pre-order on Wex in the UK at £599 - https://www.wexphotovideo.com/panasonic-lumix-s-85mm-f1-8-lens-1756987/ Pana have also announced the details of the next S-series firmware updates.

I suspect it's also to do with the relationship between the manufacturer and the retailer as well - how much stock the retailer is willing to commit to, how quickly they pay their bills etc. I just had a quick look at S5 availability from a few major UK retailers - most of them are saying 'in stock' (e.g. Wex is offering next-day delivery), so if I'd had an order with Jessops since September I think I'd be asking them some hard questions by now...

From the Nikon US website for the Z-6ii: ...and for the Z-7ii:

My thoughts too... It looks like the 'Expeed 6' processors can't handle 10-bit video compression, otherwise surely they would have 10-bit internal recording by now? What have they been doing, processor development wise, for the last two years?

Yes, the review here - https://www.storagereview.com/review/samsung-portable-ssd-t5-review - highlights that the 512GB version has much slower sustained write speeds than the 2TB version (about 240 MByte/s versus 400 Mbyte/s). The random write speeds difference is even worse (about 100 MByte/s versus 400 Mbyte/s). They didn't test the 1TB version.

Just be careful that the colour handling of the m43 cameras has changed (got better) over time - the G80 and G9 that I sometimes use together look a bit different to each other (and the G7 is even older than the G80). As Lux Shots suggests, don't assume that the S5 and even the G9 will 'look' the same just because they are both Panasonic...

That's part of the reason I use m43 cameras - the long telephoto lenses are much smaller (and the Pana 45-200 is really cheap used for the original version, but you need the current 'mark 2' version to get 'dual-IS' support). If you're shooting 1080p on the G9, enabling 'Extra Tele Conversion' gives you x2.7 zoom, which turns 200 mm into 540 mm (== 1080 mm at full-frame). You'll need it on a tripod for that though... 🙂

I know you're very annoyed about it (I would be too), but the T's & C's for that promotion - https://login.360incentives.com/Shared/Uploads/SpiffPrograms/359_61284_LUMIXS5GiftPromotionTermsandConditions.pdf - clearly state: ...so you don't qualify as you live in France. Over the years I've claimed various Panasonic UK camera promotions (cashbacks and free lenses mostly) and as far as I remember they are always 'geographically restricted'. I guess your only hope is a goodwill gesture, but as the promotion handling seems to be contracted-out (to https://360insights.com/ ) I suspect that's unlikely unless you can get Panasonic UK to help directly.