Re: [ATM] Luri-Houghton prescriptions.

[Aki Lötjönen <aki.lotjonen@phnet.fi>]

Hi Bob,

It will be a great telescope! My regards to him who ever is making that
12,5 " Lurie-Houghton Telescope. Wow! I really hope you have time and
willing to make that big Lurie-Houghton Newtonian.
I read others comments. I have nothing to add. I also think surface
pairs is the right way to go. If there is an option to leave secondary
spider away, why not to do so. Lens thicknesses from designed can vary a
lot, no problems... Lurie-Houghton Newtonians are really forgiving!
The lenses need not necessarily to be coated too.

Rgds,
Aki Lötjönen


> I'm planning on coring the lenses to 2" or maybe 2.5" and putting
> the mount on them.  Why do a solid front glass and not use it to
> support the secondary mirror.  I plan on the edge of the
> secondary to be almost touching the rear lens.  The biggest fun
> will be insuring that the center spacer is the correct depth for
> the edge spacer.
> Bob May
> bobmay at nethere.com
> http: slash /nav.to slash bobmay
> http: slash /bobmay dot astronomy.net
> Addresses have been munged up to keep spammers from bothering me.
> replace the obvious words with the proper character.
> Thank you for your understanding!
> 
> _______________________________________________
> ATM mailing list http://www.atmlist.net/

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