Quote:
Originally Posted by Joshua Bunn
If you use a L filter in the train, asuming its a sharp cutoff where the IR spectrum begins, you are going to get to much red in your image. If you use a kolari vision UV/IR filter like the one i mention before, you're not going to get the Ha in your image.
i can recommend the HEUIB -II filter. 3rd one down on this page... it lets in normal visible and ha... while nog being too red. It can also be usdd for normal daylight photography.
Ot only works with canon mounts though... if you use an e mount to ef mount it will work in the ef part of the lens adapter.
Josh |
Thanks for that info Josh!
When I use the A7s with my WO71 I do use an eos adapter and a Canon t-ring so I can screw it in there. Also the second one on that list, the 52mm, would be perfect if I want to so some widefield stuff with a lens.
Cheers,
Hugh