Image of the day

From the
ATWB Customer Gallery

Lake Lanier Sunrise

My Account

New to Astromart?

Register an account...

Need Help?

A simple mount

Started by dsimons, 09/03/2004 06:42PM
Posted 09/03/2004 06:42PM | Edited 09/03/2004 06:47PM Opening Post
Lot's of terrific discussion on lens design issues. This humble forum has recently produced much more useful/relevant info than I ever had hoped.

I have made a side by side pipe mount to do some simple optics comparisons. I have access to a couple of different refractors however, I am not so experienced at optics testing.

I have Suiters book, but it is slow reading :S Any simple techniques on star testing? Ronchi screen testing ? Autocollimation testing ? (I have a pretty smooth 8" flat) I could even post some digital pictures if anyone is interested. Thanks for any ideas !

(BTW The BO1278 is on the right.)

David Simons


Attached Image:

dsimons's attachment for post 18513