Sorry if this is asking about the obvious: What would it take to convert the off-the-shelf Celestron 9x50 straight-thru finder to a RACI. Seems as if a diagonal + an eyepiece (capable of accepting a illuminator) should do the job???
Are these available from Celestron as individual components? From anywhere else? Or is the full dress Celestron #93781 the only way to make the upgrade?
Thanks in advance,