GH5 Panasonic GH5S Press Announcement

[FrancisT]

''I like his explanation for why IBIS was removed. I've never been a fan of IBIS, finding it often looking more like a bad Warp Stabilizer effect.''

I second that. Once you went wide with it, you would sometimes get an effect similar to warp stabilizer that could not be removed in post.

 

[fboonzaier]

Funny....exactly the opposite for me...my first IBIS camera is the GH5...and I was instantly hooked...and then with the new FW IS lock, if you don't move the camera the shot looks locked off!...sounds like your GH5 is broken...yours is literally the first comment like this I've read....as for wide lenses....always the easiest to handhold anyway, and when you get very wide...any movement stabilized or not, looks off. If the GH5s really is a 14stops DR camera, that changes everything and mine would go into a rig, on a VCT 14 plate and built out to about 14 to 18 lbs, so no IBIS required...14 stops will now put the GH series in the range of a Cinema camera close to EVA quality with better low light...

 

[visceralpsyche]

I've seen the same IBIS warping issue around the edges of wide lenses. It's bad enough that I turn IBIS off for anything wider than around 24mm on my Speed Booster. From 24mm or so onwards it's great for the most part, with the odd jitter jump occasionally when panning.

It's by no means foolproof and I don't think I'll miss it on the GH5S when I get one. There have been situations when the vibration caused issues as well.

I guess for me as a narrative filmmaker, the GH5S is really a huge upgrade (I also don't care about autofocus as I've literally never used it). Timecode IN is going to help a lot on sets with separate audio and multiple cameras, since you can now buy tiny little TC receivers like the Lockit Nano or Benro and mount them to your camera easily.

Add in the Speed Booster XL and you have a 1.18x crop factor in DCI 4K!! That's huge and basically negates any value proposition for the Sony A7SII, with its 8 bit 4:2:0 recording in UHD only (with 30 minute limit unless you hack it). It exceeds the EVA1 by a wide margin crop wise, as well as just about every other camera on the market barring the Red Weapon 8K VV. Pretty astonishing for a combined cost of around US$3,000 for the GH5S and Speed Booster.

Cheers,

Paul

 

[Jim Simon]

sounds like your GH5 is broken

The GH5 is not the only camera to produce 'watery' IBIS results. It's an inherent design flaw just not present in OIS. Which is the other reason I don't like IBIS. It gives folks a reason not to demand OIS in all lenses.

 

[Thomas Smet]

The GH5 is not the only camera to produce 'watery' IBIS results. It's an inherent design flaw just not present in OIS. Which is the other reason I don't like IBIS. It gives folks a reason not to demand OIS in all lenses.

The pipe dream of OIS in all lenses will never happen. Just not going to happen. We have had cameras for decades without IBIS and users and companies have never pushed hard for OIS. I doubt that will suddenly change now. Typically professionals will use other means to stabilize the shot like that one little tool that has been in use for over a hundred years, the tripod. OIS will always be a selective tool in a subset of lenses and require a huge premium.

 

[joe12south]

OIS is really stills oriented. It allows you to practically handhold at a slower shutter speed. It's benefit for motion work has been negligible.

Sometimes IBIS does introduce some errors, but comparing it to the weirdness of warp stabilizer is hyperbole (and also looks quite different.)

There will come a future when IBIS can be mechanically locked. Until then, choice is a good thing.

Paul, couldn't agree more. A Speedbosted GH5s is an indiefilmaker's best friend right now. I remain skeptical about 14 stops, but we know it won't be worse than the GH5, and will almost certainly be somewhat better. 10bit 4K/60P to the Atomos is the cherry on top.

 

[joe12south]

https://www.youtube.com/watch?v=wc-lKaL2CYU

12 stops, folks. 12 real, good, clean stops at a wide variety of ISO's. An "all light" GH5.

 

[TheDingo]

12 stops, folks. 12 real, good, clean stops at a wide variety of ISO's. An "all light" GH5.

With the advent of the dual ISO GH5s camera, I think we have to start measuring DR at a variety of ISOs because many cameras rapidly lose DR as their ISO is raised.

So a camera might have 13 stops of DR at ISO 200, but this shrinks to only 11 stops of DR by ISO 2500. ( this is what DXOMark shows for the Sony A7SII, and the GH5 drops from 12 stops of DR at 400 ISO to 9.5 stops of DR at 2500 ISO )

From the limited testing so far the GH5s has at least 12 stops of DR at both native speeds of 400 ISO and 2500 ISO.

 

[Thomas Smet]

With the advent of the dual ISO GH5s camera, I think we have to start measuring DR at a variety of ISOs because many cameras rapidly lose DR as their ISO is raised.

So a camera might have 13 stops of DR at ISO 200, but this shrinks to only 11 stops of DR by ISO 2500. ( this is what DXOMark shows for the Sony A7SII, and the GH5 drops from 12 stops of DR at 400 ISO to 9.5 stops of DR at 2500 ISO )

From the limited testing so far the GH5s has at least 12 stops of DR at both native speeds of 400 ISO and 2500 ISO.

Agreed. for too long now we have thrown around a manufacturers listed spec as some sort of badge of honor but really that is the number they give for the absolute best case scenario. I think there are a lot of users out there that somehow assume their Sony A7S is always 14 stops without actually taking a step back and wondering if that number is true and how that number changes as the settings change. Dynamic range is not just a cut and dry spec and thats it sort of thing. It no longer makes any sense to just walk around and say "well my camera says 14 stops so it must be better". Better than what and in what situation? The topic of dynamic range is 100x come complicated and three dimensional than just a single figure can ever tell us.

Sure a different camera at optimal shooting conditions may squeeze out a stop or two more than the GH5s but once the lighting is no longer optimal the Gh5s may likely be the dynamic range camera to beat. Even the mighty Nikon D850 which Dxomark rates as 15 stops drops to 11 stops at ISO 2500.

 

[aldolega]

The GH5 is not the only camera to produce 'watery' IBIS results. It's an inherent design flaw just not present in OIS. Which is the other reason I don't like IBIS. It gives folks a reason not to demand OIS in all lenses.

OIS in all lenses won't ever happen because there are plenty of excellent optical formulas that just cannot accommodate floating elements. Without IBIS these lenses would have no option for stabilization.