K 500mm- a demonstaration

roy · 01-15-2007, 01:36 PM

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

wjwncpro · 01-15-2007, 02:50 PM

Ok Mo, enough bragging about how big your lens is. Now lets see some pics 'with' it, not 'of' it...

slip · 01-15-2007, 03:18 PM

Originally posted by roy

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

randy

roy · 01-15-2007, 04:01 PM

it is a monster when mounted.

Adam · 01-15-2007, 05:20 PM

Originally posted by wjwncpro

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.

Retnuhrace · 01-15-2007, 08:05 PM

Originally posted by roy

it is a monster when mounted.

Wow... it's practically a telescope.

Adam · 01-15-2007, 08:34 PM

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.

Adam
PentaxForums.com Webmaster (Site Usage Guide | Site Help | My Photography)

PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

FLASH · 01-17-2007, 06:45 PM

What is the brand name of this lens?

FLASH

roy · 01-17-2007, 06:48 PM

pentax super multi coated takumar 500mm f4.5. it's a pentax lens. they sell on ebay for 300-600usd.

Adam · 01-17-2007, 07:03 PM

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.

roy · 01-18-2007, 10:00 AM

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.

Adam · 01-18-2007, 02:24 PM

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

Piotr · 01-30-2007, 01:38 PM

Originally posted by wjwncpro

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

Piotr
Piotr Sobolewski's Photo Galleries at pbase.com

roentarre · 01-30-2007, 01:52 PM

Originally posted by Piotr

Yes, it is not easy. Typically, I use car and bean bag and it works

Piotr
Piotr Sobolewski's Photo Galleries at pbase.com

wow, these images are great! Sharp and full of colour. I would not be able to use telephoto manual focus lens this well...

roy · 01-30-2007, 02:31 PM

unless you set it up

01-15-2007, 05:20 PM	#20
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,595 Original Poster	Originally posted by wjwncpro 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. Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

01-17-2007, 06:45 PM	#23
FLASH Senior Member Join Date: Nov 2006 Location: Eastern Shore of Alabama (Daphne, Alabama) Posts: 109	Lens Manufacturer? What is the brand name of this lens? FLASH

01-17-2007, 07:03 PM	#25
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,595 Original Poster	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. Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

01-18-2007, 02:24 PM	#27
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,595 Original Poster	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 Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

01-30-2007, 02:31 PM	#30
roy Inactive Account Join Date: Sep 2006 Location: D/FW area, Tx. Photos: Gallery Posts: 1,710	unless you set it up Last edited by roy; 06-02-2007 at 09:22 AM.

01-15-2007, 01:36 PM	#16
roy Inactive Account Join Date: Sep 2006 Location: D/FW area, Tx. Photos: Gallery Posts: 1,710	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
wjwncpro Senior Member Join Date: Sep 2006 Location: All over the USA Photos: Gallery \| Albums Posts: 193	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
slip Veteran Member Join Date: Oct 2006 Location: 2 hours north of toronto ontario canada Photos: Gallery \| Albums Posts: 3,535	Originally posted by roy 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 randy

01-15-2007, 04:01 PM	#19
roy Inactive Account Join Date: Sep 2006 Location: D/FW area, Tx. Photos: Gallery Posts: 1,710	it is a monster when mounted.

01-15-2007, 08:05 PM	#21
Retnuhrace New Member Join Date: Dec 2006 Posts: 19	Originally posted by roy it is a monster when mounted. Wow... it's practically a telescope.

01-15-2007, 08:34 PM	#22
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,595 Original Poster	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. Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

01-17-2007, 06:48 PM	#24
roy Inactive Account Join Date: Sep 2006 Location: D/FW area, Tx. Photos: Gallery Posts: 1,710	pentax super multi coated takumar 500mm f4.5. it's a pentax lens. they sell on ebay for 300-600usd.

01-18-2007, 10:00 AM	#26
roy Inactive Account Join Date: Sep 2006 Location: D/FW area, Tx. Photos: Gallery Posts: 1,710	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.

01-30-2007, 01:38 PM	#28
Piotr Veteran Member Join Date: Jan 2007 Location: Warsaw Photos: Gallery Posts: 338	Originally posted by wjwncpro 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 Piotr Piotr Sobolewski's Photo Galleries at pbase.com

01-30-2007, 01:52 PM	#29
roentarre Veteran Member Join Date: Oct 2006 Location: Melbourne, Australia Posts: 11,783	Originally posted by Piotr Yes, it is not easy. Typically, I use car and bean bag and it works Piotr Piotr Sobolewski's Photo Galleries at pbase.com wow, these images are great! Sharp and full of colour. I would not be able to use telephoto manual focus lens this well...

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