[sac-forum] Re: Looking for a 60mm f15 objective

Dick, weren't you already old in the 60's?

Sorry, couldn't pass it up

Clear Skies

Rick Tejera
Editor SACnews,
Public Outreach Coordinator
Saguaro Astronomy Club
Phoenix, Arizona
www.saguaroastro.org
saguaroastro@xxxxxxx 

-----Original Message-----
From: sac-forum-bounce@xxxxxxxxxxxxx [mailto:sac-forum-bounce@xxxxxxxxxxxxx]
On Behalf Of Richard Harshaw
Sent: Wednesday, October 15, 2008 8:33
To: sac-forum@xxxxxxxxxxxxx
Subject: [sac-forum] Re: Looking for a 60mm f15 objective

Gadzooks, I had one of those when I was a youngster!  


Richard Harshaw
Cave Creek, AZ


-----Original Message-----
From: sac-forum-bounce@xxxxxxxxxxxxx [mailto:sac-forum-bounce@xxxxxxxxxxxxx]
On Behalf Of Spencer, Darrell
Sent: Wednesday, October 15, 2008 8:30 AM
To: sac-forum@xxxxxxxxxxxxx
Subject: [sac-forum] Re: Looking for a 60mm f15 objective

Well, it is the concave side of one element - and they are chips.  I had
nothing to lose and had it apart. It's the leading (front-side) element
which, I thought was the crown portion.  The set is air-spaced.  They
were isolated by a thin "gasket" running between them at the perimeter.

And I said old, but not quite that old.  (60's vintage Sears Discoverer
6333-A).

Darrell


-----Original Message-----
From: sac-forum-bounce@xxxxxxxxxxxxx
[mailto:sac-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Paul Lind
Sent: Wednesday, October 15, 2008 8:26 AM
To: sac-forum@xxxxxxxxxxxxx
Subject: [sac-forum] Re: Looking for a 60mm f15 objective

Darrell,

Does that scope have Galileo's signature on it? Oh, I forgot, he used a 
singlet objective.  Is it really the crown that's chipped? Generally the

concave side of the flint elemenet gets chipped. Also, are the elements 
cemented?  Cement failures can look like chips.

Paul

----- Original Message ----- 
From: "Spencer, Darrell" <DSpencer@xxxxxxx>
To: <sac-forum@xxxxxxxxxxxxx>
Sent: Wednesday, October 15, 2008 7:11 AM
Subject: [sac-forum] Looking for a 60mm f15 objective


Not sure if folks here are as interested in older refractors as I am,
but I have yet another project that's old, complete and in really
pristine shape ... except for the crown half of the objective.
Clamshell chips all the way around.  If it was a 102mm, I wouldn't worry
much, but at 60mm, I'm going to try and find a replacement.

If anyone happens to have an unused "cell" they'd like to "sell", I'd
sure be interested.   (D:60, F:900)

Thanks,

Darrell Spencer

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