Quote:
Originally Posted by dave brock
Hi Steve.
(hopefully) I've attached a before and after of the Loftus 16". I've seen a few reasonable Loftus mirrors but have also seen a number of others similar to the 16". I've never seen one without a TDE.
The early mirrors I've done were 19mm plate or float glass (Alert or Smith & Smith). My 20" is Pyrex from Newport and have done 3 16" Pyrex from Newport. Other mirror blanks have been accumulated over the years from various people, alot that were half finished. The 12" I'm doing now is actually 320mm, 30mm thick plate from an Auckland Astro Soc. garage sale.
Dave
|
Hi Dave,
Nice improvement with the 16" Loftus mirror. Is this a float glass substrate, and if so what thickness? What is the f ratio?
For the refiguring, did you use Cerium oxide, or rouge? What pitch hardness? Full sized laps, or sub diameter?
Stephen.
