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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

Sony A7r II - 4K internal want this!!

Few weeks ago I talked about a high spec FF stills camera with oversampled 4K capability.

Looks like I got my wish.

Hats off to Sony.




Vadim Bobkovsky said:
Specs are epic, though I hope there's proper OLPF in there too. Some past models had aliasing problems.
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No need. At 8K resolution glass is your OLPF.

Matt Gottshalk said:
I wonder if the HDMI output is 10bit 4k.....
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Highly unlikely.

Mark L. Pederson said:
The Atomos guys are drinking champagne :)
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As well as Sound/Video Devices. :)

Daniel Kelly Brown said:
In my mind more like getting sloshed of whisky. Internal 4k in this thing makes me happy I didn't invest in any Atomos devices.
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100 Mb/s h.264 is very thin for on-camera-compressed 4K.
 
The RX10 and 100 have amazing specs as well... for the cheap(er) pocket cameras they are.
I'm not sure if there's anything hidden in the specs but it seems as if HFR exists up to 1000fps @ 1920x1080
Probably with higher compression... 50M ?
 
So excited for this camera. I just recently bought a A6000 and was having fun using a mirrorless. I was itching the move up to the A7II but I knew the A7RII was around the corner and so couldn't pull the trigger. Love the 5D3 and D800 but I wanted a full frame all in one + 4K and EVF which shoots video and still incredible images so I don't have to carry 2 or even 3 bodies around everywhere. I think this is the one! Looks like Sony is ticking all of my boxes. Can't wait to use it with Leica-R and Contax lenses with the stabilization.
 
The specs are amazing and I am trying to fall in love with this, but the demo video really does not have me sold. Even minus the blown highlights, its just not doing it for me. The A7s has a more filmic look in my opinion. Though of course I realize we need to wait and see more footage before making any accurate decisions. Time will tell, but I don't want to get too excited just yet.
 
Sony is claiming that the high speed readout will greatly reduce the rolling shutter compared to the previous model. If this pans out in real world testing then these little cameras will become powerful tools. The amazing performance of these cheap cameras puts pressure on Red to continues to push the envelope as the Full frame Red is 20X more expensive tham the SonyA7r2. Nobody would suggest the little Sony is a better camera but you get a tremendous bang for your buck.
 
"Claims a whopping EV-2 to EV19 dynamic range." According to the presentation from Sony. Anyone know how that translates to stops?

 
Tom Gleeson said:
The amazing performance of these cheap cameras puts pressure on Red to continues to push the envelope as the Full frame Red is 20X more expensive tham the SonyA7r2. Nobody would suggest the little Sony is a better camera but you get a tremendous bang for your buck.
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Not that I'm too interested in buying this camera, still, I truly applaud its spec and Sony's efforts -- this might not put as much pressure on RED as it does on Canon (who's really lagging behind when it comes to 4K video) -- it's certainly a good thing for the industry as whole, and hopefully in the same way the 5D2 was seven years back. Progress is always cool.

-- peer
 
So looking forward to popping Leica Rs on this. Right now they're on my Epic M Dragon & A7r for stills.

4.5 stops in-camera image stabilization and significant improvements at low ISO will be amazing for hand-held/low-light.

If the 4k video can hold-up as a B-cam to Dragon in some cases, wow...
 
Does anyone have these answers?


As I understand there is no pixel binning from the S35mm cutout for the 4k file but I read contradictory infos about the FullFrame to 4k conversion, is there any pixel binning done or also only downscaling (wich would need a lot of computing power)?

I'm not sure if readout emprovement means less jello effect? But it certainly means higher FPS possibility.

Pat
 
Matt Ryan said:
"Claims a whopping EV-2 to EV19 dynamic range." According to the presentation from Sony. Anyone know how that translates to stops?

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Stops alone are related to scene light values.
EV is exposure value, which includes f-stop and shutter speed relation.

What they are referring to is the ability to shoot photos wide open on a very bright scene because RX10 mk2 shutter goes to 1/32000.


http://www.sony.net/Products/di/en-us/products/ht7k/index.html

Patrick Tresch said:
As I understand there is no pixel binning from the S35mm cutout for the 4k file but I read contradictory infos about the FullFrame to 4k conversion, is there any pixel binning done or also only downscaling (wich would need a lot of computing power)?
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So far it is known:

"It's the first camera to capture 4K video on a full frame sensor with no line skipping, and adds a Super35 crop mode."

Which means reaching/surpassing NX1 acuity in S35 mode.

Patrick Tresch said:
I'm not sure if readout emprovement means less jello effect?
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Yes.

Patrick Tresch said:
But it certainly means higher FPS possibility.
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With readout higher fps also needs increase in processing and cooling power.
Also, 100 Mbs h.264 for 4K is very limiting.


In adddition - 8 bit 4:2:2.

http://www.sony.net/Products/di/en-us/products/dkw5/specifications.html?contentsTop=1
 
Hrvoje Simic said:
So far it is known:

"It's the first camera to capture 4K video on a full frame sensor with no line skipping, and adds a Super35 crop mode."

Which means reaching/surpassing NX1 acuity in S35 mode.
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I've seen your quote but it wasn't Sony who said that. But from Sony I've read :

Footage from 4K movie recording featuring full pixel readout without pixel binning in the Super 35 mm format exhibits higher resolution and superior clarity than typical 4K movies.


Why do they specify S35mm format? Is pixel binning done on the FF format? Can you show me who stated your quote?

Thanks

Pat
 
Why is pixel binning bad all of the sudden? They have to down scale from 42Mpix to 10Mpix. Binning pixels is the best way to do that. Much better than line skipping...

Pixel binning allows for more precision in color as they average 4pixels, it gives much better fill factor, s/n ratio since they can denoise on (42Mpix ) pixel level, much better exposure control and dynamic range since they can meter at sub pixel (1/4 of the "4K pixel bin)
etc., etc.
Less indoctrination and more education please ;-)
 
Patrick Tresch said:
I've seen your quote but it wasn't Sony who said that. But from Sony I've read :

Footage from 4K movie recording featuring full pixel readout without pixel binning in the Super 35 mm format exhibits higher resolution and superior clarity than typical 4K movies.

Why do they specify S35mm format?
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To focus on its main advantage.

Patrick Tresch said:
Is pixel binning done on the FF format?
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No public statements about that yet as I'm aware of.

Patrick Tresch said:
Can you show me who stated your quote?
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http://www.imaging-resource.com/new...ii-announced-were-blogging-live-from-the-pres
 
Hrvoje Simic said:
To focus on its main advantage.



No public statements about that yet as I'm aware of.



http://www.imaging-resource.com/new...ii-announced-were-blogging-live-from-the-pres
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Ok it's done by this guy :

Production Editor Dave Pardue is going over everything with a fine-toothed comb. His summary of the Sony A7R II ...


Jacek Zakowicz said:
Less indoctrination and more education please ;-)
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Thanks Jacek, I was confusing binning and line skipping. Good that you put the church in the mittle of the town (like we say here) ;-)

Pat
 
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