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Apprentice
Posts: 5
Registered: ‎04-26-2017
Message 61 of 184 (1,647 Views)

Re: private face book group

Any chance you can provide a link to the facebook group?  I tried searching it and it didn't come up...

Apprentice
Posts: 12
Registered: ‎04-16-2017
Message 62 of 184 (1,633 Views)

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

my bad, changed the setting to 'closed' now. pls search again ;-)
Specialist
Posts: 32
Registered: ‎01-19-2017
Message 63 of 184 (1,583 Views)

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

A further description of the star eater algorithm and its impacts can be found here...

Apprentice
Posts: 14
Registered: ‎06-16-2015
Message 64 of 184 (1,563 Views)

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

[ Edited ]

That's a great article! It's an excellently written piece explaining all the pertinent facts in a way that is very clear to anyone.  I also love the title "Sony and the star-eater algorithm – or, ‘how Sony crippled the world’s (possibly) best cameras for astrophotography’"

 

Mark

Specialist
Posts: 24
Registered: ‎04-17-2017
Message 65 of 184 (1,461 Views)

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

[ Edited ]

here is another one from last weekend, a moonset on a dark area

 

HOW MANY OF THESE DOES SONY NEED FOR HAVING THE DECENCY OF ANSWERING THIS THREAD ?????

 

i won't stop feeding this thread with examples as long as we have no answer

 

taken with SIGMA ART 20mm f/1.4 + SONY A7S2 = $~5k GEAR UNCAPABLE OF RECORDING STARS with exposure >3.2s

 

moon_set.gif

 

DSC09671_200%.gif 

 

 

ADF Apprentice
Apprentice
Posts: 14
Registered: ‎04-18-2017
Message 66 of 184 (1,424 Views)

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

[ Edited ]

Man MadMan MadMan Mad geezez that's shocking results!, come on Sony we need answers!

Enthusiast
Posts: 2
Registered: ‎05-02-2017
Message 67 of 184 (1,377 Views)

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

[ Edited ]

Just registered because i am at the verge of buying into DSLM. Wanted the A7R2, but for long exposure cityscapes and daytime long exposures (1min+). So spoutnicko you already showed some good examples for cityscape nighttime. Can you eventually post or upload a original size JPG/RAW of an example? I hope its not too bad and still usable for these 2 fields (cityscape/daytime) but to me it seems that its such a big image crippling thing, that it has also major impact on other long exposure fields. Which would render the camera useless to me (and many other too). 

 

 

Specialist
Posts: 24
Registered: ‎04-17-2017
Message 68 of 184 (1,307 Views)

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

 

here is another one, different focal lenght, with my not-so-sharp samyang 14mm

 

i wish i had a batis, the results should be even worse...

 

here is also a drive link so you can download and analyze the raw images yourself:

https://drive.google.com/file/d/0ByI0HyhWSn8BUl9TLWNxdHNLNU0/view?usp=sharing

 

SONY STOP FIDDLING WITH OUR RAW!! WE NEED UNFILTERED RAW ON ALL EXPOSURE TIMES

 

ALLOW US TO GET BACK TO OLD FIRMWARE

 

 

DSC00052.gif

Specialist
Posts: 24
Registered: ‎04-17-2017
Message 69 of 184 (1,306 Views)

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

about long exposure in daytime, i cannot do, i do not have neutral densities.

 

i guess the results would be similar, loss of resolution on fine structures/textures, and disappearance of point-like details

 

 

Specialist
Posts: 32
Registered: ‎01-19-2017
Message 70 of 184 (1,280 Views)

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

[ Edited ]

Here's a daylight image that I just shot with my Loxia 85 at F/5.6, and with a Benro 10-stop ND

filter. As expected from other comparisons, the fine detail is degraded, particularly the sun

reflections off the leaves in the background, but also in supression of the very fine dark dots

along the top line of the red-brown part of the roof. Both images processed identically in LR,

except for equalisation of exposure. To see more clearly, right click and choose 'open in new tab'.

 

-John

 

DaylightExample.JPG

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