Re: [ATM] trepanning mirror

["Thomas Janstrom" <thomas@moiler.com>]

That last one sounds like the most important reason, isn't that why we
all do this?

Thomas.

-----Original Message-----
From: atm-bounces@atmlist.net [mailto:atm-bounces@atmlist.net] On Behalf
Of woodycxd@adelphia.net
Sent: Tuesday, 28 March 2006 9:22 AM
To: atm@atmlist.net
Subject: Re: [ATM] trepanning mirror

Well for these reasons in no order of importance.

By using the nasmyth focus i can bring the focal plane into the tube.
This shrinks the secondary down in size and then by folding the light
cone down I can bring the focal plane to a more comfortable position.

By using a gregorian instead of a newtonian I can do away with the large
counterweight that hangs out in the way.

The gregorian will give me excellent contrast with minimal aberrations
across the visual field.

Being a member of the Springfield Telescope Makers it somehow seems
appropiate to build one.

I really really want one.

-----Original Message-----

From:  "Donald Good" <donald.good@comcast.net>
Subj:  RE: [ATM] trepanning mirror
Date:  Sun Mar 26, 2006 9:01 pm
Size:  495 bytes
To:  "'Wayne Hilliard'" <woodycxd@adelphia.net>,<atm@atmlist.net>

Wayne,
Could you explain your reasons for putting a Gregorian on a Springfield
style mount?
Clear skies
Don


-----Original Message-----
From: atm-bounces@atmlist.net [mailto:atm-bounces@atmlist.net] On Behalf
Of
Wayne Hilliard
Sent: Sunday, March 26, 2006 7:44 AM
To: atm@atmlist.net
Subject: [ATM] trepanning mirror

Hi all it's been a while since I posted a question here but I have been
lurking.

My new project is a gregorian 8 inch f30. On a S

_______________________________________________
ATM mailing list http://www.atmlist.net/

-- 
No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.1.385 / Virus Database: 268.3.2/294 - Release Date:
27/03/2006
 

-- 
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.1.385 / Virus Database: 268.3.2/294 - Release Date:
27/03/2006
 

_______________________________________________
ATM mailing list http://www.atmlist.net/