ASI1600 or ASI183

aax1980

Hello,

i am interested in a new astro camera and currently the ASI 1600 MM or ASI 183 MM are in my closer view.

The scope where the new camera should be used is a APO with 580 mm focal length (F/5.8).

I also got a 0.67 reducer for the scope which corrects the focal length to 388,6mm (F/3,8)

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The ASI1600 with the scope will make a resolution from 1.4“/ pixel.

The ASI183 with scope and the reducer will make a resolution of 1,32“ / pixel.

Both resolutions are fine for me also the field of view looks more or less identical.

Now I am wondering which combination will perform better?

Maybe someone has a similar setup and can share some experience.

Kind regards

Alex

dudley richards

I cannot recommend a further focal length reduction of your f/5.8 telescope. You will otherwise have a very frustrating time with vignetting, especially if you intend to use a filter wheel. Focus also becomes super-critical and hard to hold. I have never had a good result when attempting this level of focal ratio reduction.

Richard

Support@ZWO

I think both is good for you.