Amateur Scope with Nasmyth Focus

[beka]

Hi All, 

Was just thinking that it should not be that hard to put a Nasmyth focus on some of the bigger alt-az mounted SCT's.  It would have the advantage of have a fixed viewing height and you could say, have one side for visual and the other for astrophotography with a flip mirror. I imagine some would not mind the additional cost - considering that people are buying the Celestron RASA's. Any ideas?

Cheers

 

[andrew s]

Yes it certainly has attractions especially if you have heavy equipment or a disability.

It does add complexity with the Nasmyth mirror and access for collimation and as with all Alt AZ mounts you need a de-rotator for imaging with long exposures.

Regards Andrew