Have I/we been had?Posted By Gerry Stowe |
No you haven't been had. As I understand all the older Lumicon filters weren't marked. I have seen about 7 of them, UHC, O-III and Deep Sky's that didn't have any markings at all on the edge.....can't tell really what one you have unless you use em and compare thru a scope while looking at an object. I know there's other ways to test to tell what you have but am not sure what the test is but think it uses a spectrometer.