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The full OM-1 (written) review is on dpreview now - https://www.dpreview.com/reviews/om-system-om-1-review Interesting that UHD 8-bit video looks about the same as on E-M1 iii, but 10-bit HLG/OMlog400 is noticeably more detailed.

The only problem I can think of is if you come to sell the Tascam removing the Velco tape might leave some marks on the base (assuming that's where the powerbank might go) if you are unlucky or careless. If the base of the Tascam is steel (but it might not be - check with a magnet) then you could put self-adhesive magnetic pads or tape on the power bank and attach it magnetically. Put a cage on/around the S5 to give you more attachment points (or even just an L-backet) maybe?

Velcro i.e. the self-adhesive hook/loop tape version - one side stuck to the Tascam, the other on the powerbank, or maybe velcro cable ties? If it's mobile phone shaped, then there are phone holders for cars and tripods that might be usable?

43rumors ran a "Interesting speculation: Is the new OM-1 nearly entirely made from Sony parts?" story recently, based on speculation from a Russian blogger, so you're not the only one to have noticed some similarities 🙂 Given that OMDS isn't really a head-on competitor to Sony, it wouldn't surprise me too much to find there's more Sony content in the OM-1 than OMDS would want to own up to (and personally it's far more important to me what the OM-1 does rather what's inside it that matters).

From the OM-1 manual :

(My bold) I agree. Even though I really like my G9 and in absolute video quality it easily beats the E-M1 ii, the overall package of good ergonomics, superb natural-looking stabilization and decent video quality makes the Oly a good handheld 'just point it at the subject and press record' camera. I bought my used E-M1 ii during lockdown mostly to have a play with (never having owned an Oly camera before) and it's definitely grown on me - I can understand why people like them.

I agree (based on experience with my G9). While I'm sure the best from Sony and Canon would handle some use cases better, it works perfectly well for my use cases (and better than my PDAF-equiped E-M1 ii in some situations, like wildlife video with long lenses).

It's only 24p on E-M1 ii/iii. At least on the OM-1 I think DCI, UHD & FHD are all available at 23.98/24/25/30/50/60p which is a major improvement. I agree...Oly/OMDS has a good looking Natural profile, so why not make it even more useful by having a 10-bit version available?

The video resolution test chart results don't look very impressive for a 2022, $2000 camera - I was hoping the OM-1 would be at least as good as a GH5 or G9 in that respect. As the review says "OMDS engineers have something to work on in the near future"

What does the 'strange movement' look like? I think the problem with discussing the pros and cons of this is that everyone has different 'use cases' and sensitivity to the artefacts stabilization can introduce sometimes. I'm biased towards maximum stability and minimum wide-angle warping artefacts, which I think E-stabilization on my G9 helps with, and for my use cases (I mostly shoot video of wildlife and transport subjects) I don't notice any significant E-stabilization artefacts. I also use 'IS Lock' a lot - when shooting handheld with 300mm+ lenses I need all the stabilization I can get 🙂

No experience with the S5, but on the G9 I normally have the E-Stabilization on all the time (with native m4/3 lenses) - for me, the extra stability and reduced 'warping' effects with wide-angle lenses outweigh the small extra crop and marginal reduction in resolution. AFAIK yes it does use the gyro data. As Kye pointed out recently on another thread, you can still get motion blur due to camera movement, as the E-Stabilization part can't do anything about that, but I think Panasonic use a combination of lens, sensor shift and electronic stabilization (when E-stab is enabled), which should minimise that problem in theory. Why not try it and see what you think? (I also use stabilization in post - Mercalli v5 in my case - but every software stabilizer I've ever tried or used can be 'broken' by some material - I think it's far better to stabilize in camera as much as possible).

The user manual for the OM-1 is available now - https://cs.olympus-imaging.jp/en/support/imsg/digicamera/download/manual/om/man_om1_e.pdf

There are a couple of (as far as I can tell) SOOC downloadable video files at the bottom of this page on Photography Blog - https://www.photographyblog.com/previews/om_system_om_1_photos They are 10-bit HEVC, 4k 59.94fps so will be either OM-log 400 or HLG (AFAIK those are the only options on OM-1 when using HEVC). File data from Mediainfo from one of them:

The GH5s doesn't have IBIS (and it's got a different, lower pixel count/larger pixel area sensor versus the GH5/GH5ii/G9)

I think you could say the OM-1 is a stills camera with good video capability and the GH6 is a video camera with good stills capability - both very, very capable but designed to appeal to different market areas/users. (The G9 versus GH5ii is a similar situation in the m43 world).

That's my view too (for the same reasons). They are both the same price at the moment in the UK, so it's very much head-to-head marketing on price, but in reality they are appealing to different areas of the market.

It looks like Panasonic are being aggressive with the GH6 launch pricing/offers versus the OM-1 - in the UK Wex are listing the GH6 body-only at 1999 GBP (with a free 128GB CF Express type B card) versus the OM-1 at the same price (with a free extra battery).

You might want to have a quick look at the 'video performance' part of the dpreview 'initial review' video. Also (according to that mini review) if you use H.265/HEVC to get 10-bit recording, the only picture profiles available are 'OM log 400' or HLG. I think H.264/AVC is limited to 8-bit recording.

Just to add to that, the Pana 14-140mm f3.5-5.6 and 12-60mm f3.5-5.6 lenses work fine on my E-M1 ii (using IBIS). One thing I have noticed when using C-AF in video (with my E-M1 ii, hopefully OM-1 behaves better) is that if a lens is well stopped down (e.g. f16) it can sometimes rack focus a little (presumably to check it's still in focus), so it's best to use lenses with low focus breathing. I don't notice the change in focus when this happens (due to high DOF at f16), but the focus breathing is noticeable with some lenses e.g. the Pana 14-42mm 'pancake' power zoom lens is particularly bad for this.

The Olympus/OM Systems UK rep myself and several other potential customers were talking to yesterday said Oly/OM had already sold all of the first (March) shipment into the UK of OM-1 bodies (and most of the body+lens kits). I suspect a lot of those are sales to existing Oly owners upgrading (as you would expect) but hopefully this bodes well for future sales.

This is an older thread discussing some of the 'dual gain output'/HDR methods in use - https://www.eoshd.com/comments/topic/38363-simultaneous-dual-gain-sensors/ After reading the Arri and Canon 'whitepaper' info: Arri use a simultaneous dual ADC approach (their amplifiers and ADCs appear to be off-sensor), the combining the results. Canon DGO reads out the stored charge for a pixel, stores it, then does two sequential ADC conversions at different gains and combines the results. Both those approaches avoid the 'images captured at different times' motion artifacts issue that sequential frame capture HDR creates. In that thread, androidlad mentions another HDR mode that some Sony sensors support called DOL-HDR - https://www.eoshd.com/comments/topic/38363-simultaneous-dual-gain-sensors/?do=findComment&comment=354063

That's pretty much my conclusion too, based on the info in the Petapixel article Django linked to upthread. Given the smaller percentage of red & blue photo sites versus green ones in X-trans (compared to a Bayer pattern), there is likely to be a higher level of chroma noise that needs to be dealt with - doing what looks like pretty simplistic spatial (and maybe some temporal) filtering is a 'cheap' way of suppressing it.

I had a brief play with an OM-1 today (my local camera store had an 'Olympus Day' with an OM Systems rep in attendance). Nice camera - feels very much like an E-M1 mk2/mk3 in the hand - as expected. The new EVF is lovely - larger/sharper/smoother and nicer looking/less obtrusive graphics. The new menu system looks good too (and is a long overdue redesign, I think). It had the new 12-40mm 2.8 mk ii lens on it, so I tried it recording 4k60p with 'medium area' C-AF, shutter priority and (I think/assume) auto-ISO selected. I panned it back and forth between close focus inside the store to infinity outside in sunshine - nice smooth refocusing and exposure changes every time and the IBIS seemed very good - basically as expected. I was a bit disappointed that (in video mode) it only appeared to offer a choice of four sizes of rectangular focus areas (centre, small, medium and full area) - I was expecting it to offer the same choice of focus areas & shapes as in stills mode (i.e. like my Pana G9 does). Asked the rep about this and he confirmed the limitation and that he'd pass my comments on to OM Systems. Note this is for the basic video C-AF - AFAIK touch-AF, tracking, subject recognition etc. can all be used for video, but I didn't try those. Overall - based on a 10 minute play with it, of course - I think OM Systems have a very nice camera in the OM-1, and (particularly if you need a weather sealed, relatively small and light hybrid camera system) it feels probably worth the price. Question is - do I really *need* to replace my G9 + E-M1 mk ii combo with an OM-1, or am I just suffering from GAS? 😀

The Pana 14-140mm 3.5-5.6 is actually my favourite lens for video, especially as it supports dual-IS2 stabilization with the higher-end Panasonic cameras. It's certainly the lens that's been on more foreign trips than any other I own. Just wish they'd make a version of it with power zoom - I can dream... Next favourite is the Pana 12-60mm 3.5-5.6 - very cheap used, weather resistant, light weight, minimal focus breathing, dual-IS2 support, and works nicely on my E-M1 II as well as the Panasonic cameras.

That's my reaction too - a good, solid, upgrade over the EM1 mk 3 but it's up against strong competition from the (somewhat cheaper) GH5ii, G9 & XT4, let alone all the full-frame stuff from Sony, Canon & Nikon (e.g. a Z6ii is the same price). It's got a nice niche as rugged, smallish, lightweight camera with solid stills and video specs (which holds some interest for me personally), but it's going to be a very hard sell against Sony, Canon & Nikon full-frame cameras at similar price points.