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Source for refractor lenses?

Started by plunkett, 02/01/2004 02:00AM
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Posted 02/01/2004 02:00AM Opening Post
Pat Plunkett
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Join Date: Jul 2001

Location: Wheeling WV, US

Posts: 115

Hi:

I want to build something like the "Sunspotter" solar observer and am trying to find a LONG focal length lens (probably about f/20) in a size around 60mm. Any ideas? I tried Edmund, but got lost on their site (and the biggest lenses I could find were 50mm).

Pat
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Posted 02/01/2004 02:16AM #1
Bob Chester
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Join Date: Feb 2002

Location: Seattle WA, US

Posts: 185

Pat,
Apogeeinc(dot com) sells a 60mm 1000mmfl lense with cell for 25 bucks. I have no idea as to it's quality but it might suit your purpose.
Bob
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Fujinon 10x70 FMT-SX binocs
Tak FS-78 ƒ/8.1 - 630mm fl.
6" ƒ/6.5 homeground newt. - 981mm fl.
10" ƒ/4.85 homeground dob. - 1231mm fl.



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