|
Out of curiosity... are these rather pricey "solar scopes" equipped with singlet, achro or more complex objective ?
The reason I ask is that given you're using filter to produce a monochromatic image there's no point using an achro or APO objective ... the only aberrations to worry about are the 5 monochromatic Seidel ones.
Last edited by Wavytone; 20-10-2017 at 03:19 PM.
|