ZWO asi120mc on Coronado PST - question

[lnlarxg]

Hi, anyone here used the little ZWO asi120mc on a Coronadon PST?  

is it possible? would like to know if anyone here has actually got this set up and tried.

I researched and found mixed reviews, some say its not possible some say it is possible with 2xBarlow, some say they butchered their PST to make it work.

Thanks! Dom

 

[Peter Drew]

It should be possible. The main issue is usually reaching focus. Two solutions that have been successful are either reducing the height of the eyepiece holder or srewing just the lens cell of a 2x Barlow on to the nosepiece of the camera.    ?

[michael.h.f.wilkinson]

Note that in the MC version, a lot of light is wasted, because only the R pixels are really sensitive to H-alpha. An MM would be better, but I have seen decent results with a colour camera and H-alpha scopes.

[Pete Presland]

You certainly can reach focus. I did some experiments when owned a PST I will see I can find the photos tonight.

[Pete Presland]

Looking at my images, most of the experimental stuff was with the Lunt50mm. I do remember cutting down the nose piece on my camera to achieve focus with the PST, I think it was ok with a Barlow as well.