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Star Eater Algorithm and getting in contact with Sony
  
 
thrice
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p.9 #1 · p.9 #1 · Star Eater Algorithm and getting in contact with Sony


I just did a re-test after fully initialising the camera.

I still have star eater issues at 4.0s+

Spoke to a friend at Sony, he doesn't think this FW was meant to be star eater fix.



Jun 09, 2017 at 12:34 AM
MJKoski
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p.9 #2 · p.9 #2 · Star Eater Algorithm and getting in contact with Sony


Oh yes, it would be seriously dumb to leave such setting without a switch to enable/disable it. Forcing it / leaving it out totally is not the way you handle such features with multi-$$$$ camera body.


Jun 09, 2017 at 08:35 AM
thrice
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p.9 #3 · p.9 #3 · Star Eater Algorithm and getting in contact with Sony


My lenscap-on tests with rawdigger show LENR on/off as having no effect and the details being smeared over 3.2s regardless...








Edited on Jun 09, 2017 at 08:59 AM · View previous versions



Jun 09, 2017 at 08:40 AM
MJKoski
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p.9 #4 · p.9 #4 · Star Eater Algorithm and getting in contact with Sony


Adobe did their own filtering? Did you check with Capture One? Free for Sony.


Jun 09, 2017 at 08:53 AM
thrice
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p.9 #5 · p.9 #5 · Star Eater Algorithm and getting in contact with Sony


MJKoski wrote:
Adobe did their own filtering? Did you check with Capture One? Free for Sony.


Hi, I just checked with Rawdigger and I'm seeing filtering at 4.0s.



Jun 09, 2017 at 08:57 AM
thrice
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p.9 #6 · p.9 #6 · Star Eater Algorithm and getting in contact with Sony


Here's another re-test at same aperture (in case that had any effect).

It's perhaps not as bad as it was, but some funky business is definitely still going on.







Jun 09, 2017 at 09:33 AM
aikaarska
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p.9 #7 · p.9 #7 · Star Eater Algorithm and getting in contact with Sony


Uups. That sounds (and looks) a bit weird...


Jun 09, 2017 at 01:45 PM
 

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walts.photo
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p.9 #8 · p.9 #8 · Star Eater Algorithm and getting in contact with Sony


Thrice,

The difference becomes even more apparent when you compare histograms in Rawdigger. The 3.2 second exposures show a bi-modal distribution in all four channels, one grouping being darker and the other, smaller grouping consisting of these "hot pixels". It's easiest to see these using a logarithmic Y-axis scale since the hot pixels are few in number compared with the background.

The distribution changes at 4.0 second exposures. All the "hot pixels" are truncated. eg: ISO 6400 and ISO100 comparison with no LENR, no DRO, dark room, lens cap on, firmware 4.0:

https://adobe.ly/2sc41qZ





My conditions: A7Rii, latest firmware (4.0), LENR on/off, DRO on/off, iso 100/6400, compressed raw vs uncompressed raw, 3.2 sec vs 4 sec exposures at f/4, 35mm (16-35 4), lens cap on in dark room.



Edited on Jun 11, 2017 at 05:24 PM · View previous versions



Jun 09, 2017 at 04:05 PM
Fred Miranda
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p.9 #9 · p.9 #9 · Star Eater Algorithm and getting in contact with Sony


So, did the firmware upgrade (fw 4.0) fixed the Star Eater issue for the A7RII or not?


Jun 09, 2017 at 11:27 PM
ThanhHa
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p.9 #10 · p.9 #10 · Star Eater Algorithm and getting in contact with Sony


Someone please post a real-world test.


Jun 10, 2017 at 12:23 AM
navmannz
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p.9 #11 · p.9 #11 · Star Eater Algorithm and getting in contact with Sony




Fred Miranda wrote:
So, did the firmware upgrade (fw 4.0) fixed the Star Eater issue for the A7RII or not?

Seems like they have modified rather than removed the filtering, with some improvement, but still some modification so not 'raw' raw. It's not ideal weather or moon phase here, so having to be patient.
-John



Jun 10, 2017 at 02:03 AM
aikaarska
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p.9 #12 · p.9 #12 · Star Eater Algorithm and getting in contact with Sony


ThanhHa wrote:
Someone please post a real-world test.


Hi,

Here is my kind of "real world" test with A7RII (firmware v.4.00) - 3.2sec vs. 4sec

I think there is some improvement indeed, vs. v. 3.30.

https://www.dpreview.com/forums/post/59682602






Jun 10, 2017 at 07:45 PM
fred_76
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p.9 #13 · p.9 #13 · Star Eater Algorithm and getting in contact with Sony


Hi all!

A petition is now online against the Star Eater.

It has been proposed by myself and reviewed by Laurent Laveder, Thierry Legault, Ian Norman, Damian Peach, Aaron D. Priest and Babak Takeshi.

We invite you to sign it :
http://www.change.org/p/sony-remove-the-star-eater-on-sony-a7s-r-mk-i-ii-and-a9-cameras

Clear sky

Fred



Jul 29, 2017 at 08:02 AM
navmannz
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p.9 #14 · p.9 #14 · Star Eater Algorithm and getting in contact with Sony


fred_76 wrote:
Hi all!

A petition is now online against the Star Eater.

It has been proposed by myself and reviewed by Laurent Laveder, Thierry Legault, Ian Norman, Damian Peach, Aaron D. Priest and Babak Takeshi.

We invite you to sign it :
http://www.change.org/p/sony-remove-the-star-eater-on-sony-a7s-r-mk-i-ii-and-a9-cameras

Clear sky

Fred


Well done Fred!

-John



Jul 30, 2017 at 06:06 AM
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