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01-15-2007, 01:36 PM   #16
roy
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adam,
here's a link that all owners of this lens should have. very informative.
Manual Focus Forum / Pentax Super Takumar 500mm F4.5

roy

01-15-2007, 02:50 PM   #17
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Ok Mo, enough bragging about how big your lens is. Now lets see some pics 'with' it, not 'of' it...
01-15-2007, 03:18 PM   #18
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QuoteOriginally posted by roy Quote
i wish we would change. the measurement system in the US sucks..
also, how big is a 500mm?? 10 50mm..
hey 10X50=500
2.54 cm= 1 inch or
25.4 mm= 1 inch

hope my memory serves me well..... been out of tool and die for a number of years

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01-15-2007, 04:01 PM   #19
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it is a monster when mounted.



01-15-2007, 05:20 PM   #20
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QuoteOriginally posted by wjwncpro Quote
Ok Mo, enough bragging about how big your lens is. Now lets see some pics 'with' it, not 'of' it...
Here you go: https://www.pentaxforums.com/forums/post-your-photos/2324-tonto-national-forest.html

There's a link to the full gallery at the bottom- the first few pics are taken with the 500mm.

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01-15-2007, 08:05 PM   #21
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QuoteOriginally posted by roy Quote
it is a monster when mounted.


Wow... it's practically a telescope.
01-15-2007, 08:34 PM   #22
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It's focal length is greater than that of most consumer telescopes, and it's faster, too.

If we had one of these, we could even use the lens as a 2500mm telescope:




After all, it's the eyepiece that yields the high magnification.

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01-17-2007, 06:45 PM   #23
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Lens Manufacturer?

What is the brand name of this lens?

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01-17-2007, 06:48 PM   #24
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pentax super multi coated takumar 500mm f4.5. it's a pentax lens. they sell on ebay for 300-600usd.
01-17-2007, 07:03 PM   #25
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Also, the K-mount version (I have the K version, roy has the screwmount version) is called SMC Pentax 500mm F4.5. I picked mine up on KEH.

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01-18-2007, 10:00 AM   #26
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actually i have a K mount on mine even tho the lens says Takumar.
adam, does your cam lock into the mount??
also with the adapters for using it as a telescope, what would the magnification be?? if these were fefracter scopes they would cost a small fortune.
01-18-2007, 02:24 PM   #27
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Hmm, you must have an earlier version, then. The only difference is the design of the focusing ring.

The magnification on that eyepiece is 5x, so you'd be looking at a 2500mm telescope

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01-30-2007, 01:38 PM   #28
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QuoteOriginally posted by wjwncpro Quote
Ok Mo, enough bragging about how big your lens is. Now lets see some pics 'with' it, not 'of' it...
Yes, it is not easy. Typically, I use car and bean bag and it works

Pentax *ist DS ,Pentax smc 500mm f/4.5
+TC1.4 1/125s f/8 iso400

Pentax *ist DS ,Pentax smc 500mm f/4.5
1/750s f8 iso400

Pentax *ist DS ,Pentax smc 500mm f/4.5
+TC1.4 1/350s f/8 iso400


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01-30-2007, 01:52 PM   #29
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QuoteOriginally posted by Piotr Quote
Yes, it is not easy. Typically, I use car and bean bag and it works
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wow, these images are great! Sharp and full of colour. I would not be able to use telephoto manual focus lens this well...
01-30-2007, 02:31 PM   #30
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unless you set it up

Last edited by roy; 06-02-2007 at 09:22 AM.
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