Hi everyone,

This is my first post on this wonderful forum that has helped me many and many times and I hope I have opened it in the right section.

Well, I own a complete 12" LX200 ACF for the planetary imaging (with its Super Wedge) and a classic AiryApo80, a TApo 80ED f/6.25 (and its 0,8x reducer) from PrimaLuceLab for DSO imaging mounted on a NEQ6 Pro, and finally with an ASI1600MM PRO on the way.

But now the big sister of this camera has recently come out, the fabulous ASI 294MM PRO, and I was wondering (only after taking the 1600 will you tell me?! Unfortunately or fortunately yes, now we'll see...):

considering a sky with an average resolution of 2 "given by atmospheric turbulence, it is convenient to make a change on the fly between the two cameras, i.e. switching the 1600 with the newer 294, considering the small price difference?

I know the 294 outclasses the 1600 in many ways, but my main gripe lies in the sampling. For simplicity I make a small summary of the calculations made for both scopes:

- for the LX200 I would have a theoretical optimal sampling at 0.122"/pixel: with the 1600 (3.75um) I would reach 0.126"/pixel (with a 2x barlow), while with 294 (2.315um, bin 1x1) 0.157"/pixel (without any barlow);

- for 80ED I would have a theoretical optimal sampling at ~ 0.463"/pixel: with the 1600 I would have 1.547"/pixel; with the 294 (bin 1x1) I would have 0.955"/pixel.

I am aware that the sampling for DSO follows different rules and the reasoning of the optimal sampling is not so important that for the long focal length planetarium, but I wanted to report it for completeness.

Having said that, in your personal opinion, being able for the moment to allow me only one camera, which of the two could best meet my needs taking into account my equipment and the average sky in which I operate?

Am I fussing over anything and should I go to 294 right away?

Thanks in advance for your answers.

Manuel

**Edited by SolarSystem96, 09 May 2021 - 10:03 PM.**