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ADF Specialist
Specialist
Posts: 20
Registered: ‎04-18-2017
Message 11 of 215 (2,585 Views)

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

I could have found myself in the exact same boat, I 'was' seriously wanting to upgrade from my cropped Canon to FF Sony gear with some nice new g-master Sony lenses as well but I think this might be a deal breaker for me sadly, why pay thousands for fancy gear if some software is gona destory Astrophotos which is a large part of what I do, surely a simple on/off function can be applied.... please Sony I want to give you my money but not until this gets fixed!.

Expert
Posts: 41
Registered: ‎01-19-2017
Message 12 of 215 (2,584 Views)

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

I tested tonight to see if the TimeLapse app might have disabled the median filtering to speed up image capture when in a repeat capture mode, but sadly results indicate otherwise. Running 30 images shot with a Loxia 85 through DeepSkyStacker, each with an exposure of 3.2 seconds yielded a much higher star count than an equivalent set of images with an exposure of 4 seconds. I then repeated the exercise with my 35 mm lens, and the degradation is even worse. Perhaps an app as suggested above would be the way to go. Come on Sony!

 

-John

Apprentice
Posts: 12
Registered: ‎04-16-2017
Message 13 of 215 (2,559 Views)

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

[ Edited ]

@AnthonyCS: can you give us an update regarding Sony's point of view? Thanks!

Apprentice
Posts: 5
Registered: ‎04-18-2017
Message 14 of 215 (2,544 Views)

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

This is completely unacceptable Sony. Part of the reason I bought my A7rii was to take astrophotos and it needs to leave my raw files alone and retain the detail of the stars. Please add a setting to disable star eating as soon as possible. I was planning on going out and taking pictures of the stars soon but this news has me thinking it will be a waste of time. Please push hard to get this fixed as soon as possible! If you want a customer going forward this needs to be resolved sooner rather than later.

Rookie
Posts: 1
Registered: ‎04-18-2017
Message 15 of 215 (2,540 Views)

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

I do also astrophotography, and would like to have an option to get rid of the RAW filtering. My A7Rii will stay in home when I'm taking night sky photos, and that is a shame.
Specialist
Posts: 24
Registered: ‎04-17-2017
Message 16 of 215 (2,516 Views)

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

i was a couple of weeks ago in a trip to lapland to photograph northern lights. i did wonderful live videos with A7s2 and sigma art 20mm 1.4mm, which is ~5k€ hardware.

 

but for the stills when the aurora when was not active enough (like on the images i shared) and required >10s exposure, my old 40D and Samyand 28mm (1k€ hardware!) did much better job with denser star fields... such a disappointing feeling seeing my expensive a7s2 lagging beyond my 10years old, APS-C, 40D...

 

photographers need TRUE RAW files, UNFILTERED, UNCOMPRESSED, UNTWEAKED for all exposure times

 

 

 

Specialist
Posts: 24
Registered: ‎04-17-2017
Message 17 of 215 (2,507 Views)

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

[ Edited ]

to complement a bit, when looking at any sharp picture with exposure time >3.2s, the effect is present to some extend if the picture contain sharp details. 

 

for instance crop of Montparnasse tower, i let you guess which one is 3.2s and which one is 4s...

 

this is not affecting just of bunch of foolish customers that do star photography, but any customer using exposure time larger than 4s. luckily for Sony, most of them will never realize it...

 

we need to have the choice to deactivate this feature, we need UNTWEAKED RAW.

 

DSC09520.gif

 

 DSC09520_200.gif

 

 

Specialist
Posts: 24
Registered: ‎04-17-2017
Message 18 of 215 (2,469 Views)

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

BTW, is there a way to change the title of the thread, because star eater is present on Mark2 as soon as exposure is >4s, not only in BULB mode?

Specialist
Posts: 17
Registered: ‎02-27-2017
Message 19 of 215 (2,457 Views)

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

Yes but Sony needs to know that this isn't acceptable for bulb exposures either - not when someone is doing Astrophotography which can often require exposures over 30sec
Enthusiast
Posts: 1
Registered: ‎04-19-2017
Message 20 of 215 (2,374 Views)

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

Just registered to support the call for a simple switch in the menu for this kind of raw baking. Raw data needs to stay as unprocessed as possible if you want to be able to get the most out of this camera. Besides this kind of low pass spatial filtering is nothing that couldn't also be done in post. 

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