Image of the day

Captured by
Michael Scherman

Lagoon and Triffid Celestron C6 Hyperstar4

My Account

New to Astromart?

Register an account...

Need Help?

That stuff on your lens, is it dust or mud?

Started by Doug Peterson, 07/02/2007 09:08PM
Posted 07/02/2007 09:08PM Opening Post
I see a lot of scopes for sale described as new, except for a little "dust". If it was dust, I would blow it off, so it must be mud--you know, dust + dewing = muddy concoction that must be carefully cleaned.

"--Granted, that's a worse case scenario. The destruction might in fact be ... limited to our own galaxy."
Posted 07/03/2007 12:08PM #1
No matter how well you clean there will ALWAYS be stuff on a lens. That is what Dark/Light Subtraction is for smile