RE: [APML]: Re:Focal Reducers

[Mike Thenhaus <MikeT@7thlevel.com>]

Greg, I'm not absolutely sure about this but I think Lumicon
offers an instrument called the "rich field adapter" that
reduces Focal Ratio to f/3.3. I'm not sure if it can be used
for photography and I am pretty sure that it can only be
used with Schmidt-Cassegrain and Maksutov type scopes.

Michael "The Edge" Thenhaus
miket@7thlevel.com
(972) 498-8114


> ----------
> From:         Greg Mueller[SMTP:mueller@silverlink.net]
> Sent:         Thursday, February 19, 1998 9:01 AM
> To:   astro-photo@nightsky.com
> Subject:      Re: [APML]: Re:Focal Reducers
> 
> 
> There has been, in the past, mention of a f3.3 (I believe) focal
> reducer,on this list. Does anyone know anything about it? Better yet
> does anyone have a review of it they would like to share with me?
> -- 
> Greg Mueller
> Amateur Astronomer, Machinist, Filmnut
> 
> Every passing hour brings our Solar System forty-three thousand miles
> closer to Globular Cluster M13 in Hercules...
> and still there are some misfits who insist there is no such thing as
> progress!
> 
>  http://www.silverlink.net/~mueller/
>