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GX8 v G6 long exposures at night

Started Dec 9, 2015 | Photos thread
Astrotripper Veteran Member • Posts: 8,676
Re: Neither looks good.

Jorginho wrote:

I understand you want to show us the differences and the differences are clear.

mFt sensors have not gained even 1 stop over the past 9 years when we look at noise.

So which is it?

This example really demonstrates the difference very clearly. Bump that exposure time even more, and the difference will be even greater (and amp-glow will start showing its ugly head as well).

Not per DxO and not what we see here where G6 represents the typical mFT sensors 2008-2012.

DxO does not measure dark current, which is the predominant noise source at long exposures like that. And the differences between Panasonic and Sony sensors in this regard are huge, as demonstrated here. So an E-M10 for example, will perform much better at long exposures than most Panasonic cameras except the ones I mentioned earlier. And the difference is much bigger that what DxO or other noise measurements done in "normal" conditions would let you believe.

BTW, the Nex-3 you mention, is actually one of the best APS-C cameras in terms of handling dark current, and would leave both of the Panasonics in the dust for shots of this kind.

 Astrotripper's gear list:Astrotripper's gear list
Sigma DP2 Merrill Olympus PEN E-PL1 Panasonic Lumix DMC-GM5 Olympus E-M1 II OM-1 +15 more
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