[ATM] Folded Newt was Purpose of baffles/shrouds

[Dale Eason <atmpob@yahoo.com>]

It looks to me like you will have your head in a very
uncomfortable position to use that scope if the
bearings and focuser are oriented as suggested in the
drawing.  When at the zenith you will have to tilt
your head back.  When the scope is at 45 deg you need
to crouch down under the scope to look into the
focuser.

Dale Eason

--- Peter <peter@kitgear.com> wrote:

> Tom,
> 
> Good idea regarding the pics.
> 
> I just uploaded two pics which I think will describe
> the concept. The
> focuser tube will be at least 9" long with 2 movable
> baffles to allow me to
> optimize contrast. It will be similar to the same
> way an SCT looks upwards
> toward the secondary.
> 
> http://www.kitgear.com/atm/25inch/
> 
> Please let me know what you think?
> 
> Peter
> 
> 
> -----Original Message-----
> From: atm-bounces@atmlist.net
> [mailto:atm-bounces@atmlist.net]On Behalf
> Of Tom Krajci
> Sent: Tuesday, November 22, 2005 9:03 PM
> To: atm@atmlist.net
> Subject: Re: [ATM] Purpose of baffles/shrouds
> 
> 
> >From: "Peter" <peter@kitgear.com>
> 
> >What kind of baffling do you suggest for a folded
> Newtonian where the
> >eyepiece looks upwards into the sky? I am
> incorporating such a design in my
> >large ultra light scope but I plan to use a 9" long
> focuser tube which will
> >have two movable baffles. The tube and adjustable
> baffles will limit the
> >field of view to only the secondary mirror. The
> secondary mirror will not
> >have a shield behind it.
> 
> A picture's worth a thousand words.  Can you post a
> simple layout
> diagram...kind of like what James Lerch just did?
> 
> Thanks in advance.
> 
> Tom Krajci
> Cloudcroft, New Mexico
> 
> 
> 
> --
> No virus found in this outgoing message.
> Checked by AVG Free Edition.
> Version: 7.1.362 / Virus Database: 267.13.5/177 -
> Release Date: 11/21/2005
> 
> _______________________________________________
> ATM mailing list http://www.atmlist.net/
> 
> _______________________________________________
> ATM mailing list http://www.atmlist.net/
> 



	
		
__________________________________ 
Yahoo! Mail - PC Magazine Editors' Choice 2005 
http://mail.yahoo.com
_______________________________________________
ATM mailing list http://www.atmlist.net/