I have been looking at the prices for Coronado H-alpha solar filters...truely astronomical
.
My budget won't hack that, but can I use a baader film filter on the front of my ED80, with a H-alpha filter on the eyepiece to get the same effect?
with kind regards,
Lawrence
My budget won't hack that, but can I use a baader film filter on the front of my ED80, with a H-alpha filter on the eyepiece to get the same effect?
with kind regards,
Lawrence