@tesla500
Ok, that is good to know.
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@BiduleOhm
Well, the moon is actually quite a bright object in the Sky. If you want to do some deep Sky-Object Photography you will have to deal with far less bright objects in the Sky.
Also i guess that image of the moon was shot on the Kit Lens @75mm...? Based on the Size... Dont know what apperture tho, could be anything from 1.2 (Rather unlikely that NiNeff used 1.2 on that) to like 11...?
As far as Sensitivity of the Sensor goes, i found in side-By-Side testing with my Nikon1 that the Base-Gain (Gain 0) is about as sensitive as ISO 160 or 200 and the highest available Gain-Setting should be compareable with ISO 3200 as far as Sensitivity goes, but i havent tested that side-By-Side for the higher Gain-Values for verification.
While it is possible to use 1.2 on something like the Kit lens, if you want something longer (Like Telescopes), you will get appertures of 5,6 or below. Also most Lenses Wont perform best when wide-Open, so you will need to Stop most of them down a bit to get good image Quality. And if you simply expose your image Longer then, i guess Noise will get even Worse.