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Galaxy hunting. Which camera?

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5 replies to this topic

#1 Surfer4329

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Posted 27 February 2020 - 04:41 AM

Hello everyone. So, galaxy season is here for us in the north. I only have two cameras that I can use for going after galaxy images: ASI1600mm-pro and ASI224MC. The scope I’m using is my Orion 800mm astrograph (f/3.9).

Here’s the question: will imaging with my 1600mm and cropping the image yield similar results when it comes to resolution if I image with my 224MC? I like the idea of imaging with the 1600 because of temperature control.

#2 happylimpet

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Posted 27 February 2020 - 05:13 AM

No brainer, you need controlled temperature for accurate calibration. And yeah, the pixel sizes are very very similar so cropping should yield the same sampling.


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#3 Eric Horton

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Posted 27 February 2020 - 09:23 AM

Just curious because I have no astrograph experience but looking for one. Why crop? Will there be that much coma if a corrector is used

#4 Stelios

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Posted 27 February 2020 - 01:01 PM

I don't even know why you would remotely consider the ASI224MC. That's a planetary camera, period. There's no disadvantages to the ASI1600MM and many advantages starting with cooling and much larger FOV.


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#5 Eric Seavey

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Posted 28 February 2020 - 01:45 AM

There is the QHY224C that I use that is great for DSO.  For an extra couple of dollars you do have more flexibility with a larger sensor.



#6 dmdouglass

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Posted 28 February 2020 - 01:15 PM

I don't even know why you would remotely consider the ASI224MC. That's a planetary camera, period. There's no disadvantages to the ASI1600MM and many advantages starting with cooling and much larger FOV.

+1 to what Stellos said....




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