gary1968 Posted December 11, 2018 Author Share Posted December 11, 2018 5 hours ago, Thalestris24 said: Hi An Evostar ED80 may be ok (there are other models/brands) - you'd definitely want the 0.85 reducer - that would bring your focal length down to 510mm - maybe still a leetle long for a 183 (less than 1"/pixel). It's worth checking your fov with a calculator such as http://www.12dstring.me.uk/fovcalc.php It will show you the relative size of a selected target for your scope/camera combo and calculate the pixel scale. I've been thinking about getting an asi183mc pro myself but if I ever do I'd put it on a shorter frac with a reducer so shorter still - less than 400mm. Do take your time and don't spend anything until you're sure about what you want, why you want it and what you intend to do with it. A good refractor will cost more than an equivalent reflector but is likely to be less hassle and pretty much maintenance-free. Louise As for what I will be using it for, widefield DSO stuff mainly, nebulae, some galaxies, star clusters etc.... I'd like to revisit most of the objects I've imaged before as its been a while. I will most likely be buying either a new eq5pro ar a 2nd hand heq5pro..... I know how good the heq5 is as I've had them in the past..... I haven't had much experience with the eq5, other than I had a cg5gt a while back and it was a nightmare to guide.... If I go for the eq5pro I hope its better than the cg5gt. Thanks, Gaz Link to comment Share on other sites More sharing options...
gary1968 Posted December 13, 2018 Author Share Posted December 13, 2018 Decision made, I'm going for the Skywatcher 72ED and the ASI183MC Pro. I have seen some images taken with that camera and a similar 420mmfl scope on the ZWO Facebook page and it seems to be a nice combination. Still to decide on the mount but it'll be a eq5 or heq5, that little imaging package wont strain a eq5 so I wont rule that out. Thanks for the help and advice. Gaz Link to comment Share on other sites More sharing options...
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