I was reading somewhere that a UV/IR filter is not required for a pure reflector system, could someone shed some light on this for me? Thankyou.
UV/IR Cut filters with RC telescopes
Well Written Engaging
Yes, that is true for all reflector scopes. But if you want to put any sort of lense (like a reducer or something else) into the pathway of the light, i would recommend an IR/UV-cut filter.
Might it be that a flattener does not bend the light that much and therefore could be used without UV/IR cut filter?
Also, I see from specifications that the mirrors really do not reflect much at lower NIR wavelengths.
Also, I see from specifications that the mirrors really do not reflect much at lower NIR wavelengths.