Quote:
Originally Posted by raymo
Just a nitpick and a couple of thoughts. The 7 inck Mak is 180mm, not
127mm. Firstly, the Mak gives great images without suffering the coma
that fast Newts do. Secondly, a reducer can be used to make it much faster for imaging. Thirdly, even with a decent stable EQ mount it would be much more easily portable. I'm not knocking large Dobs[I have one myself] ,just trying to balance the info you are getting. Further along you could perhaps get a Dob as well, being as they are so cheap for their size.
raymo
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Sorry. My mistake. I had the 127mm in my head for some reason. Yes 7" is the 180mm/f15 Mak. Same comment as before about focal ratio i.e. photographically slow but can be improved with focal reducer.
Disregard previous comments about cost as this one is worth a lot more. However you could buy a 10" to 12" GOTO DOB for a similar cost. Just a thought. Note too Mak's are factory collimated and provided this is good will be OK otherwise they do not readily allow for user collimation. (Depends on the design of the Mak).