CCD vs Film? Lots of time vs no patience? Alright, this is your place to discuss all the astrophotography what's and what's not. You can discuss about techniques, accessories, cameras, whatever....just make sure you also post some nice photos here too!
Hi,Meng Lee
Your pic fantastic and your skill really pro.You know the C11-at least mind--is difficult to focus due to mirror shift problem.As you increase the elevation of your scope,the mirror MAY shift and you are out of focus again.Its very troblesome and c11 dont have mirror lock.You have to focus again and again.How you skillfully overcome that?Thanks.
superiorstream wrote:Hi,Meng Lee
Your pic fantastic and your skill really pro.You know the C11-at least mind--is difficult to focus due to mirror shift problem.As you increase the elevation of your scope,the mirror MAY shift and you are out of focus again.Its very troblesome and c11 dont have mirror lock.You have to focus again and again.How you skillfully overcome that?Thanks.
Hi,
yes the mirror shift is bad, so I had a Moonlight SCT focuser at the back to focus without mirror shift. Haha maybe I should buy a Tak CN212 instead.