Re: Grainy moon, by MalVeauX
There's no real reason to increase the ISO to 3200 when shooting the moon. And it doesn't move fast enough to require setting the shutter to 1/1000 sec, either. Reducing the ISO a LOT would go a long way toward reducing the noise. I try to set the ISO as low as possible to avoid the noise produced at higher settings. It's a lot like using film - the faster the film, the grainier the picture.
There's a lot of detail in this picture that's totally hidden by the noise. Try setting the ISO to 100, and reduce the shutter speed to see if you can't get rid of a lot of noise.
My issue was I was fighting with my mount and it wasn't tracking correctly, so I had to get the shutter speed up because it was tracking, but drifting off the moon, the moon was a pot shot at the time, the shutter speed was necessary in my situation unfortunately. I recently got an Orion Sirius and I'm still learning to even use it, it was not a good option for a quick "let's shoot the moon" in the middle of the night completely unaligned and simply facing North at 28 degrees, but I wanted to fiddle with it as it wasn't raining for once.