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Equipment Discussions >> Classic Telescopes

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gerfmon
member
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Reged: 07/19/12

Loc: Longmont, CO
What Did I Just Buy?? new
      #5529177 - 11/20/12 12:05 AM

Purchased this on Ebay, more of a impulse buy, but hey, it was only 35 bucks. Seller says it's 7 inches in diameter but I'm guessing that's including the cell. Probably more like 6 or 6.5 inches. Kind of big for a copier lens, maybe an old aerial camera lens?

Worse comes to worse I'll have a heck of a big magnifying glass for these tired old eyes.

http://www.ebay.com/itm/Optico-F-5-Lens-/181028809038?_trksid=p2047675.l2557&...


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apfever
Carpal Tunnel
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Reged: 05/13/08

Loc: Colorado
Re: What Did I Just Buy?? [Re: gerfmon]
      #5529263 - 11/20/12 01:13 AM

DANG! I would have risked that purchase. I could seriously use a 6" short tube for a finder. My current finder is an Orion 120ST. I have some Celestron 6" yard cannons but those are F8 something and don't cut it for a finder FOV.
If that lens turns out to be telescope material, and you want to turn a quick profit (within reason), I'm interested.


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oldtimer
Pooh-Bah
*****

Reged: 11/13/08

Loc: Lake County Illinois
Re: What Did I Just Buy?? new [Re: gerfmon]
      #5530094 - 11/20/12 12:55 PM

This 'may' be a great find. It is 'possibly' a short focus (f-5) 6" achromat made by a now long defunct company valled 'Optical Glass Fabrication' which made 6 and 8" F5 lenses back in the 70's and 80's. I had both at one time and they made great RFTs. Let us know how it test out.

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RussD
member


Reged: 04/20/06

Loc: Minnesota
Re: What Did I Just Buy?? new [Re: oldtimer]
      #5575018 - 12/17/12 12:10 AM

I have a 114mm F12.5 that was made by Optico and it is a nice lens. I is in an OTA made by Dobbins Co. and was built back in the early 80s. I think it is likely you did really well there.

Russ


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