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10-02-2009, 04:03 PM   #1
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What are these?

(Not sure where to put this, so...I'll try here, as it seems clear the pieces in question are accessories of one kind or another.)

By way of an extended family member who died recently, I had a few Pentax pieces fall into my hands:
  • Honeywell/Pentax Spotmatic (in quite rough shape)
  • Super-Takumar 1:1.8 55mm (needs cleaning before I ascertain condition)
  • Coligon 1:4.5 200mm (needs cleaning)
  • 2 items I can't identify (needs cleaning)
I haven't the foggiest idea what to make of the last two.

The larger of the two (labelled PK - JAPAN, 1st 2 attached images): one side seems to fit my K10D mount, and has threads on the other side.

The smaller of the two (labelled TA2 JAPAN, last 2 attached images): one side doesn't seem to fit anything I own, and also has threads on the other side.

The threaded side of each item seems to fit the 55/200mm lenses, but the lenses doesn't seem to screw in very far. The lenses screws in much farther on the Spotmatic.

Just trying to figure out what to these two bits are. Any help?

Attached Images
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PENTAX K10D  Photo 
View Picture EXIF
PENTAX K10D  Photo 
View Picture EXIF
PENTAX K10D  Photo 
View Picture EXIF
PENTAX K10D  Photo 
10-02-2009, 04:23 PM   #2
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looks like parts of a T mount adaptor for a telescope

very similar to the mounts that came with my celestron C90 spotting scope to mount my camera
10-03-2009, 08:41 PM   #3
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I would also say T2 (or T-mount) adaptors. Tamron and others made a whole range of lenses that can be adapted to most systems with these interchangeable adaptors - I have a 135mm f/2.8 that is pretty nice and as Lowell said you can still get telescopes and other optical equipment that use them.

The female threaded side is very similar to the M42 Pentax lenses (M42x.75 instead of M42x1) but has a different thread pitch so they shouldn't be mixed as you can damage both parts.
10-04-2009, 03:16 PM   #4
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Yep! Looks like T-mounts to me.

10-05-2009, 10:52 AM   #5
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Thanks for the replies, everyone. Anyone want 'em for the price of shipping?
10-05-2009, 01:38 PM   #6
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They are also used to attach a camera to a "microscope".
12-17-2009, 09:57 AM   #7
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QuoteOriginally posted by thirdofthree Quote
Thanks for the replies, everyone. Anyone want 'em for the price of shipping?
hi there, are these still available and how much first class usps to Canada?
12-18-2009, 11:00 PM   #8
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QuoteOriginally posted by kryss Quote
hi there, are these still available and how much first class usps to Canada?
Sorry, forgot to update the thread: they're gone.

12-22-2009, 10:22 AM   #9
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QuoteOriginally posted by thirdofthree Quote
Sorry, forgot to update the thread: they're gone.
That was fast!..hehe
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