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Specialist
Posts: 22
Registered: ‎01-19-2017
Message 81 of 111 (688 Views)

Re: star-eater algorithm in Bulb-mode shots - please offer alternative

It appears as if we might finally be getting some traction with Sony - I posted a query on Brian Smith's webpage about this f/w upgrade (here), and he replied indicating that Sony are aware of the problem and are working on a fix...

 

-John

Specialist
Posts: 22
Registered: ‎01-19-2017
Message 82 of 111 (681 Views)

Re: star-eater algorithm in Bulb-mode shots - please offer alternative

"Review sites that compare the A7RII to other cameras should re-run the tests of the cameras at 4s in order for it to be an honest representation of what consumers can expect."

 

I tried to interest Roger Cicala at Lens Rentals in doing this, but so far he hasn't taken the bait - it would be so easy to test, mounting a good copy of known, high-performing lens, and shooting test shots with lighting adjusted to allow exposures at 3.2 and 4 seconds. I'd love to see the results, but my picks is that mtf for high frequencies would be significantly affected.

 

-John

Apprentice
Posts: 8
Registered: ‎05-04-2017
Message 83 of 111 (676 Views)

Re: star-eater algorithm in Bulb-mode shots - please offer alternative

Hi John,

Brian's response worries me, in that he says Sony are working on a fix that keeps both astrophotographers and daylight long exposure photographers happy.

As a daylight ‘long’ exposure photographer (usually 8-30s) this update that provides smearing of fine detail across the frame does NOT make me happy.

Sony please take note and give an option to completely disable spatial filtering and all noise reduction for those photographers who know what they’re doing.
Apprentice
Posts: 8
Registered: ‎05-04-2017
Message 84 of 111 (632 Views)

Re: star-eater algorithm in Bulb-mode shots - please offer alternative

ResDrop.gif

 

It's not just stars that are affected. If you like resolution then don't shoot >3.2s.

 

More detail here: https://www.getdpi.com/forum/sony/61610-a7-2-resolution-drop-3-2s-exposure.html

Enthusiast
Posts: 4
Registered: ‎08-30-2015
Message 85 of 111 (609 Views)

Re: star-eater algorithm in Bulb-mode shots - please offer alternative

Very interesed to see if anyone has tested the A99ii to see if the alogrithm works the same on that camera. Looking to upgrade from my A77 and its a lot of coin to shell out if the same issues re resolution are happening with the A99ii. Anyone had experience or have the A99ii that are willing to test?

Apprentice
Posts: 13
Registered: ‎04-22-2017
Message 86 of 111 (568 Views)

Re: star-eater algorithm in Bulb-mode shots - please offer alternative

Update:

 

Some hope at least...

 

http://briansmith.com/sony-releases-a7rii-firmware-update-3-30/

 

Brian Smith wrote:

 

May 4, 2017

This is an example of an update that fixed a problem for one group had the undesired side-effect on another group. Photographers who long-exposure daylight exposure of several minutes in duration requested built-in long exposure noise reduction. The update solved that but ate a few stars in the process. Sony engineers are aware of the issue and working hard to find a solution that makes both groups of users happy.

 

 

Apprentice
Posts: 12
Registered: ‎02-27-2017
Message 87 of 111 (550 Views)

Re: star-eater algorithm in Bulb-mode shots - please offer alternative

Nothing to "find" ... just make spatial filtering an option that can be turned on and off for all exposures, including BULB. Have it be a separate option than noise reduction (call it hot pixel reduction maybe?). That way those of us who know what we're doing can use the cameras we paid for to their fullest potential and those who claim they need this sort of RAW massaging can still enable it at the leisure
Apprentice
Posts: 5
Registered: ‎04-26-2017
Message 88 of 111 (512 Views)

Re: star-eater algorithm in Bulb-mode shots - please offer alternative

thrice - Brian's response worries me as well.  And his newest comment is even more worrisome:

"I’ve heard from photographers who are extremely happy with the update for long-exposure daylight photography. Once again, the goal is optimal performance for all applications."

I find it hard to beleive that photographers shooting RAW want a median filter applied to their RAW file.  What's the point of shooting RAW?  It might be helpful for others to express their concern about loss of detail in daylight photography on that thread...

Specialist
Posts: 16
Registered: ‎04-17-2017
Message 89 of 111 (476 Views)

Re: star-eater algorithm in Bulb-mode shots - please offer alternative

this is NON SENSE!

 

daylight long exposure photographer already had the option of turning LENR ON so that they do not have hot pixel!

 

the upgrade of firmware that TOTALLY DESTROYS OUR APPLICATION would in this case only be for the "lazy" daylight long exposure photographer that do not want to wait for the dark frame???? NON SENSE

 

to improve marginally something already OK, you destroy of whole field of application?????

 

in this case, the menu for Long Exposure Noise Reduction could be:

AUTO: --> star eater for lazy daylight photographers

OFF: --> no noise reduction, no filtering at ALL, only RAW RAW IMAGES

SLOW/BEST: taking a dark frame without spatial filtering

 

 

Enthusiast
Posts: 1
Registered: ‎05-07-2017
Message 90 of 111 (289 Views)

Re: star-eater algorithm in Bulb-mode shots - please offer alternative

>>>>> "will need to switch to another system from a manufacturer who actually respects their customers (*cough* Fuji? *cough*)."

Don't be so fast. I've shot a Fuji XT-2 at night side by side with a Nikon D810. When comparing files, I noticed that the Fuji file was missing stars as if something ate them. I suspect they are doing something similar to Sony.

Sony needs to fix this by giving users an option to switch it on or off.

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