Hello,
I'm looking into trying mono astrophotography in the future but have a question about narrowband filters. Since I'm using scopes of different focal ratios I'd like to get narrowband filters that will work with all of them. I've got Samyang 135 and RASA 8 so that's around f/2 and a newt at f/4. I have no plans to do DSO imaging at above f/5 maybe. I image from a bortle 3 area, so wider filters are ok.
One solution is to buy a separate SHO set for highspeed but I'd like to avoid that for now. I've seen people use 7nm filters with Samyang, not sure if that provides good transmission. Does anyone have experience with using SHO filters for both fast and slower scopes?
I'm looking into trying mono astrophotography in the future but have a question about narrowband filters. Since I'm using scopes of different focal ratios I'd like to get narrowband filters that will work with all of them. I've got Samyang 135 and RASA 8 so that's around f/2 and a newt at f/4. I have no plans to do DSO imaging at above f/5 maybe. I image from a bortle 3 area, so wider filters are ok.
One solution is to buy a separate SHO set for highspeed but I'd like to avoid that for now. I've seen people use 7nm filters with Samyang, not sure if that provides good transmission. Does anyone have experience with using SHO filters for both fast and slower scopes?
