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Proper "rule" for pinpoint stars with M43

Started Oct 27, 2016 | Discussions thread
OutsideTheMatrix
OP OutsideTheMatrix Veteran Member • Posts: 9,876
Re: Proper "rule" for pinpoint stars with M43

Giiba wrote:

OutsideTheMatrix wrote:

Thanks! Do you also find that when you get to ISO 3200 the star colors seem to become pale, regardless of shutter speed? I think this has to do with reduced dynamic range. I've been keeping ISO at between 800-1600 to keep star colors rich regardless of the shutter speed.

I find exactly that. If I'm shooting stars I use 1600, but I find if I want the milky way I get better results if I use 3200. Below 800 I find I get banding, but I really haven't experimented much with different iso settings, just full stop changes (200, 400, 800, 1600, etc)

Thanks, I find the table at Sensorgen quite useful. Are you shooting with the E-M1?

Note the drop in read noise between ISO 400 and 800.

http://www.sensorgen.info/OlympusPEN-E-PL5.html

It is actually lowest at ISO 3200 but that ISO has a DR of below 10 stops, which I find is too low for maintaining good star colors. Even though noise is also very low at 3200.

E-M5 and E-M10 are very similar (though for some reason read noise levels are slightly higher with the EM-10.)

http://www.sensorgen.info/OlympusOM-D-E-M5.html

http://www.sensorgen.info/OlympusOM-D-E-M10.html

E-M1 has a better read noise profile.

http://www.sensorgen.info/OlympusOM-D-E-M1.html

 OutsideTheMatrix's gear list:OutsideTheMatrix's gear list
Nikon Coolpix P900 Olympus PEN E-PL6 Olympus OM-D E-M10 II Olympus M.Zuiko Digital 14-42mm 1:3.5-5.6 II R Olympus M.Zuiko ED 75-300mm 1:4.8-6.7 II +9 more
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