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Re: [ATM] A new 110 cm (43.3") telescope project




-----Original Message-----
From: atm-bounces@atmlist.net [mailto:atm-bounces@atmlist.net] On Behalf Of
Robert Houdart
Sent: Saturday, January 20, 2007 6:35 AM
To: atm@atmlist.net
Subject: Re: [ATM] A new 110 cm (43.3") telescope project

Hello Bill,

The price tag is around $50k.
In my experience mirror prices are approximately proportional to the
*cube* of the diameter. So very approximately:
	16" => $ 2,000
	20" => $ 4,000
	25" => $ 8,000
	30" => $ 15,000
	36" => $ 28,000
	43" => $ 50,000
Going from 30" to 36" may seem a small step, but it will double your
budget.

Robert

Phew that's a lot of clearing plates and resetting tables at my job ;)

Again I can't vouch for the quality of these but I've talked to the guy in
the past about ATM and he seems nice, for the price they would DEFINITLY be
worth looking into if you want to do a 40"+. Heck a 48" is only 3,600$!!!
Definitely a money saver if the quality is good. Surprises me no one talks
about these when you could save 47,500$!!!!!!!!!!
 
http://www.embeddedrf.com/Lookinglass_Webpage_Files/Webbed_Backed/Webbed_Bla
nk.html

Mitch



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