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ASI662MC Settings ZWO ASI662MC · Alien_Enthusiast · ... · 2 · 65 · 0

Alien_Enthusiast 2.86
Alien_Enthusiast
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Dear Astrobinners,

I will be using asi662mc for planetary imaging with a 6" f15 refractor. The area is very light polluted.

I have 3 questions;

1. What exposure and gain should I use?

2. Should I use IR cut filter or IR pass (850nm+)

3. Should I bin2?

Thanks!
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andreatax 9.89
andrea tasselli
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OSC cameras are a bad choice for achros which I expect that 6" to be. Your best option is to use a violet-suppressing filter such the Baader semi-APO. No IR filter whatsoever. Exposure and gain have to set in relation to what you are shooting at, so in general relate to frame rate. As a guideline try to get at 2/3 of histogram with your gain/exposure settings. In good seeing you  try to minimize bandwidth noise so longer exposures at lower gain are to be preferred whilst the opposite in so-so seeing. In bad seeing you go home. I wouldn't bin, ever, while shooting planets but it might help focusing so that is an option.
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Gondola 8.11
Tony Gondola
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Do not bin, you want to over-sample, not under. OSC can work very well for a monochrome target like the moon. An achromat with a green filter can perform extremely well in that application. But, as Andrea pointed out, shooting the planets in color isn't optimum with a simple achromat, even if it is F/15.
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