Re: [ATM] Making Barlows

["Robert Mohr" <rmohr@tiwcorp.com>]

Hi Anthony,

I have made a couple Barlows from 2x Teleconverters from 35 MM 
Cameras. 

You can pick these up really cheap at swap meets or flea markets, 
especially if they are for odd camera brands (most I've spent for one is $5). 
Generally they have nice coatings also, which you won't have if you grind 
your own. 

The lens assembly unscrews from inside it, and generally just fits into an 1 
1/4" barrel. They may not work as well as the 'premium'  Barlows, but are 
quite good, and a simple project.

Bob Mohr


> Hi Francis and all,
> 
> I'm curious about making Barlows. 
> 
> The book "Making a Refractor Telescope" by Norman Remer discusses making
> refractor lens. Is it practical for an ATM to use these techniques build
> their own Barlows?
> 
> Or is it just better to just buy Barlows.
> 
> Thanks guys,
> 
> -Anthony Anconetani
> 
> 
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> ATM mailing list http://www.atmlist.net/
> 



Robert Mohr
Director of Technical Services
TIW Technology, Inc
rmohr@tiwcorp.com
See our web site at www.tiwcorp.com
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