Hi All,
In the coming months I will be building my very own Newtonian Astrograph. I have decided on a 12.5in f3.8 mirror giving me a focal length of 1208mm
I also have my sights on the 3" Wynne Corrector by ASA. The thing is that there is no information on where to place it in the optical path. I know that it goes in front of the camera
but that is about it.
Does anyone know if you need to alter your focal point seeing as it is a big beast, 5.5in long
, from what info I have gathered.
I'm assuming that you cant just have 50+mm of corrector poking into the tube
So i'm asking anyone who has ever seen one of these or knows of someone who owns/owned one to help a fella out so I can start drawing up my tube/focuser combo.
Cheers in advance,
Ben