December 16, 2017, 02:14:40 PM

Author Topic: Off Brand: Sony Announces the Full-frame a7R III  (Read 32886 times)

xps

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Off Brand: Sony Announces the Full-frame a7R III
« on: October 25, 2017, 03:00:28 AM »

The new Sony Alpha 7RIII is announced:
- A lot of improvements , but now really "big bump" in specs like MP.


Cited from the Sony alpha Rumor site:

"A7rIII key specs (via ThePhoBlographer):

    BSI 42.2 MP full frame sensor same sensor
    4K HDR video
    ISO 100 to 32000
    10fps
    14 bit raw for everything including continuous shooting
    5 axis stabilization to 5.5 stops
    Physical dimensions are identical to the Sony a7r II
    All the new stuff is inside with the exception of the Joystick from the Sony a9
    15 stops of dynamic range due to the processor of the camera. This is only at low resolution but they’re not sure how high of an ISO that will extend to
    Autofocus from a9
    Eye AF operates at double the speed
    No optical low pass filter
    Highest picture quality of any camera they’ve made
    Low vibration shutter, completely new shutter
    Bionz X processor
    Raw compressed buffer at 87 photos and uncompressed is 28
    Pixel shift multi shooting to capture more color.
    399 phase detection AF points
    Contrast AF points: 425
    68% of the sensor area covered with AF points
    2x faster autofocus than the previous camera
    Subject tracking performance has doubled in effectiveness
    Touch functions on the screen: AF-on, multi selector and anti-flicker
    Fast AF and exposure tracking at 10fps
    8fps shooting continuous Live View
    Full HD video at 120p
    4K video at 24p and 30p
    USB 3.1
    Dust and moisture resistant
    Two card slots
    3.69 million dot OLED tru-finder
    The A9 battery
    PC sync port
    You can externally power the camera via USB
    No mirror shock no shutter shock and silent shooting
    10fps no black out. At 8fps there is momentary blackout
    No time lapse mode
    $3,199.99 in market at end of November
Europe pricing about 3500€

Some hot new A7rIII features:

    The α7R III can capture outstanding 4K high resolution motion images with 5K (15MP) oversampling, as well as a new HLG (Hybrid Log-Gamma) image configuration file,
    Support real-time HDR workflow, can capture a wide dynamic range of high-precision fresh dynamic images, no color gradient processing.
    In the α7R III on the new pixel conversion multiple shooting mode, make full use of the fuselage 5-axis anti-shake function, to achieve high-resolution images. In this mode, the camera moves in 1 pixel increments and shoots four separate pixel moving images, containing a total of about $ 99.44 million pixel data. The four images can be synthesized and processed using the software from the new Imaging Edge Intelligent Imaging Application Center. This mode allows for higher resolution and color accuracy of still images, which are more ideal for shooting themes with complex details and colors for architecture, artwork, or other still life."


and Dpreview adds an article too: https://www.dpreview.com/news/3426999280/sony-a7r-iii-promises-faster-bursts-better-focusing-and-longer-battery-life
« Last Edit: October 25, 2017, 08:35:19 AM by Canon Rumors »

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Off Brand: Sony Announces the Full-frame a7R III
« on: October 25, 2017, 03:00:28 AM »

xps

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Re: Off Brand: Sony Announces the Full-frame a7R III
« Reply #1 on: October 25, 2017, 03:04:27 AM »
Interestingly no big upgrade in Pixels. Bast maybe in the A9R...

But 15 stops of DR, higher fps.....

"In the α7R III on the new pixel conversion multiple shooting mode, make full use of the fuselage 5-axis anti-shake function, to achieve high-resolution images. In this mode, the camera moves in 1 pixel increments and shoots four separate pixel moving images, containing a total of about $ 99.44 million pixel data" - This function we see in another body from another manufacturer. Interestingly, they copied it.

xps

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Re: Off Brand: Sony Announces the Full-frame a7R III
« Reply #2 on: October 25, 2017, 03:05:35 AM »
And the price tag...  :) No 4K Pricetag....
I hope the rumors are true.

Canon, do you read this announcement? I hope so  ;D

Mikehit

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Re: Off Brand: Sony Announces the Full-frame a7R III
« Reply #3 on: October 25, 2017, 03:32:41 AM »
Quote
15 stops of dynamic range due to the processor of the camera.

So does this mean that the sensor hasn't actually improved, but it is done by electronic jiggerypokery? If so, I have wondered for some time if this is how Sony have been doing it before.

SecureGSM

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Re: Off Brand: Sony Announces the Full-frame a7R III
« Reply #4 on: October 25, 2017, 03:33:13 AM »
Quote
... Pixel shift multi shooting to capture more color ...

https://youtu.be/6-811lVi0Qc

Dual Pixel Raw on steroids. ( quad pixel RAW? )

SecureGSM

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Re: Off Brand: Sony Announces the Full-frame a7R III
« Reply #5 on: October 25, 2017, 03:42:49 AM »
Mike,
likely this is done by Temporal Noise reduction in Pixel Shift Multi Shooting mode.

https://www.dxomark.com/red-helium-8k-dxomark-sensor-score-108-a-new-all-time-high-score2/

TNR: noise reduction based on sampling multiple sequential image frames. This technique, called temporal noise reduction (TNR), is most commonly used in video, since there are many successive frames to work with . However, temporal correlations across a time axis are not relevant when analyzing the image quality of a single RAW image, as they do not impact any RAW converters.

A.M.: However, Pixel Shift Multi Shooting mode is essentially a multiple sequential image frames and therefore TNR method may work.




Quote
15 stops of dynamic range due to the processor of the camera.

So does this mean that the sensor hasn't actually improved, but it is done by electronic jiggerypokery? If so, I have wondered for some time if this is how Sony have been doing it before.

Mikehit

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Re: Off Brand: Sony Announces the Full-frame a7R III
« Reply #6 on: October 25, 2017, 03:59:56 AM »
Mike,
likely this is done by Temporal Noise reduction in Pixel Shift Multi Shooting mode.

https://www.dxomark.com/red-helium-8k-dxomark-sensor-score-108-a-new-all-time-high-score2/

TNR: noise reduction based on sampling multiple sequential image frames. This technique, called temporal noise reduction (TNR), is most commonly used in video, since there are many successive frames to work with . However, temporal correlations across a time axis are not relevant when analyzing the image quality of a single RAW image, as they do not impact any RAW converters.

A.M.: However, Pixel Shift Multi Shooting mode is essentially a multiple sequential image frames and therefore TNR method may work.




Quote
15 stops of dynamic range due to the processor of the camera.

So does this mean that the sensor hasn't actually improved, but it is done by electronic jiggerypokery? If so, I have wondered for some time if this is how Sony have been doing it before.

Thank you for the explanation. What you seem to be saying is that this 15-stop DR applies only to video? If so, is this another example of Sony's approach to announcements where the list of caveats is almost as long as the list of features?

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Re: Off Brand: Sony Announces the Full-frame a7R III
« Reply #6 on: October 25, 2017, 03:59:56 AM »

SecureGSM

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Re: Off Brand: Sony Announces the Full-frame a7R III
« Reply #7 on: October 25, 2017, 04:09:27 AM »
no, sorry. i am saying that this, likely, applies to Pixel Shift Multi Shooting mode. as TNR cannot be applied to a single image but to image sequence only. PSMS mode is indeed a sequence of  multiple images. Hence my hypothesis that TNR _may_ be implemented in Pixel Shift Multi Shooting mode.




Thank you for the explanation. What you seem to be saying is that this 15-stop DR applies only to video? If so, is this another example of Sony's approach to announcements where the list of caveats is almost as long as the list of features?

Mikehit

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Re: Off Brand: Sony Announces the Full-frame a7R III
« Reply #8 on: October 25, 2017, 04:18:44 AM »
That makes sense. Thank you again.


dlee13

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Re: Off Brand: Sony Announces the Full-frame a7R III
« Reply #10 on: October 25, 2017, 05:50:14 AM »
I was so confused at first when I seen "a7R III", I though the A7 III would be next since it needs an update more than the A7RII.
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dolina

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Re: Off Brand: Sony Announces the Full-frame a7R III
« Reply #11 on: October 25, 2017, 06:08:59 AM »
I am a tad disappointed with some things. I based this on features on 2017 flagship smartphones and flagship full frame cameras from Sony & Nikon.

* The two SD slots are not both UHS-II
* Would the UHS-II slot read/write at peak 312 MB/s (2000x)?
* LCD is not multitouch
* USB-C should be Thunderbolt 3 so it can combine video (remove micro HDMI), data and charging (remove micro USB) thus allowing for less weight & space.

I am happy Sony released this. May it light a fire under Canon & Nikon to offer better full frame bodies in the future or induce a price war.
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Mikehit

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Re: Off Brand: Sony Announces the Full-frame a7R III
« Reply #12 on: October 25, 2017, 06:50:15 AM »

* The two SD slots are not both UHS-II


Is there any dual-slot camera where both slots operate at the same high performance? If not, it suggests there are design limitations.

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Re: Off Brand: Sony Announces the Full-frame a7R III
« Reply #12 on: October 25, 2017, 06:50:15 AM »

neuroanatomist

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Re: Off Brand: Sony Announces the Full-frame a7R III
« Reply #13 on: October 25, 2017, 07:52:28 AM »
and Dpreview adds an article too: https://www.dpreview.com/news/3426999280/sony-a7r-iii-promises-faster-bursts-better-focusing-and-longer-battery-life

6D -> 6DII, no meaningful improvement in image quality, DPR cries, "It's a travesty, a massively disappointing failure!"

a7RII -> a7RIII, no meaningful improvement in image quality, what will DPR say about image quality?   

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neuroanatomist

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Re: Off Brand: Sony Announces the Full-frame a7R III
« Reply #14 on: October 25, 2017, 07:53:28 AM »
Dual Pixel Raw on steroids. ( quad pixel RAW? )

As long as your subject isn't moving.  But hey, steroids have some pretty negative side effects, too.

My Zeiss microscope cameras had pixel shift ('co-site sampling') over 15 years ago. 
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Re: Off Brand: Sony Announces the Full-frame a7R III
« Reply #14 on: October 25, 2017, 07:53:28 AM »