3 Jun
2007
3 Jun
'07
6:35 p.m.
Never tried the mask Eric. I use a curved secondary holder (Protostar) on my 10" dob. No spikes. MC zing Mask
Hi All, While I am on the subject, any Newtonian user ever tried an apodizing mask. They can be an effective way to reduce diffraction spikes as well as chromatic abberation. Erik