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01-13-2009, 08:12 AM   #1
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Do me a huge favour...please

I have find a website in sweden where I live
that sells a huge stock of old pentax lenses.

But now I need to ask the important.

I know a lot of pentax lenses and I know that
the old 42:screw lenses can be placed on a brand new
DSLR, but to my big suprise I saw that there are much
brands that use the 42:screw.
for example:

Pentax M42
Chinon M42
Fujica M42
Mamiya M42
Praktica M42
Yashica M42

Also Other brands using Pentax PK (same as pentax mx)
for example:

Takumar PK
Astron PK
Cosina PK
Expert PK
Kiron PK-A
Makinon PK
Panagor PK
Sigma PK
Soligor PK
Tokina PK-A
Vivitar PK-A
Pentax PK (A &M)

Not quite sure what PK means...

My question is if it is posible that I could use the lenses of all these brands on a pentax DSLR (of course with a adapter), or if it is some kind of differens between the M42, screws, k-bajonetts (or whatever) from pentax and other brands?

I would love a answer ....anyone?? anyone please?

Regards Emil

01-13-2009, 08:18 AM   #2
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Original Poster
I have also heard people use old Leica lenses on a pentax, how does all this work together?
01-13-2009, 08:24 AM   #3
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Just let us know about this website and we'll give you all the information you need, MuAHahahAHahaaa. .. .




yes. M42 is universal, though you will need an M42 - K-mount adapter in order to screw them into your DSLR body. These will work easiest in Av mode. K-mount is universal (PK = Pentax K?). These will just attach to your DSLR, but work in various modes of operation only depending on if the aperture is pre-set (Av, or M and green button combo), auto (minor surgery required to remove auto pin or shoot wide open only, as previous) or PK-A, which engages the contacts associated with body controlled aperture and metering (all modes available).
01-13-2009, 08:25 AM   #4
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QuoteOriginally posted by losecontrol Quote
I have also heard people use old Leica lenses on a pentax, how does all this work together?
First link that comes up when one searches 'Leica on Pentax'

Leica & Pentax | Leitax

If you do this, I would be curious to see results!


Kelly.

01-13-2009, 08:29 AM   #5
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lenses that are M42 meet a specific thread standard in terms of diameter 42mm and also in therms of threads per mm (i forget now the exact thread pitch) but all M42 lenses are mechanically interchangeable, with one exception.

The exception is that the registration distance from the lens mount to film plane may change slightly. this can give you the ability to focus slightly beyond infinity (no real harm) or not to focus exactly to infinity (a real pain).

There are several types of M42 to K mount adaptors, some of which have a flange on them, the origonal pentax adaptor has no flange. The flange will limit pentax screw mounts from focusing to infinity, but may work properly with third party lenses. There is also a non pentax flangeless adaptor which works well, ecept that the lens orientation is not exactly vertical.

Any lens that is PK is the origonal pentax K mount and will mount and function on a DSLR within the limits defined in the manual, and discussed here many times.

ANy lens that is PK-A means it has contacts to tell the camera body maximum and minimum apature and an "A" position which allows the camera to control apature. Again they all work on pentax DSLRs to the limits described in the manuals


As for Leica lenses they are an M39 (39mm) mount and there are adaptors available to mount them (convert them) to M42 and perhaps K mount, although I don"t know about the registration distance to advise if they can focus to infinity or not
01-13-2009, 08:47 AM   #6
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Oh my god. I have found a gold-mine big as canada then sweet!!

Thank you so much for the answers. The problem with focus sharp can be fixed by the correct-lenses function in the k20d right? or am I wrong?

But my god....it's so many lenses, and even if maybe not everyone of them are good I will enjoy see the old result from a cocina lens from the old days haha

Any other brands have K or m42 lenses ??

Regards Emil
01-13-2009, 08:59 AM   #7
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QuoteOriginally posted by Lowell Goudge Quote
As for Leica lenses they are an M39 (39mm) mount and there are adaptors available to mount them (convert them) to M42 and perhaps K mount, although I don"t know about the registration distance to advise if they can focus to infinity or not
There's no inherent problem regarding Leica lenses focusing to infinity on a Pentax K camera. Leica R expects the lens-sensor distance to be 47mm while the Pentax K camera offers 45.46mm. So with no spacing adjustment, the Leica lens will focus a little beyond infinity on a Pentax K camera.

Dave
01-13-2009, 09:03 AM   #8
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QuoteOriginally posted by losecontrol Quote
Oh my god. I have found a gold-mine big as canada then sweet!!

Thank you so much for the answers. The problem with focus sharp can be fixed by the correct-lenses function in the k20d right? or am I wrong?

But my god....it's so many lenses, and even if maybe not everyone of them are good I will enjoy see the old result from a cocina lens from the old days haha

Any other brands have K or m42 lenses ??

Regards Emil
Now, as a thank-you to the forum, you must share this site...

01-13-2009, 09:18 AM   #9
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QuoteOriginally posted by jsherman999 Quote
Now, as a thank-you to the forum, you must share this site...
Hmm, might be this one:
Söders Fotoservice

Sders Fotoservice
Click 35mm System Cameras on the left.

It's about 8 Swedish Krona to the USD right now.
01-13-2009, 09:23 AM   #10
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QuoteOriginally posted by farfisa Quote
Hmm, might be this one:
Söders Fotoservice

Sders Fotoservice
Click 35mm System Cameras on the left.

It's about 8 Swedish Krona to the USD right now.


If that's true, then those prices are pretty high (assuming 4th column is Krona?)


Code:
Super-Takumar       35/2            A        2000     3551322
Auto-Takumar 35/2,3 B 2000 749425
Auto-Takumar 35/3,5 B 700 567261
S-M-C Takumar 35/3,5 (F) A 800 5233973
Super-Takumar 50/1,4 A 1500 1956717
Super-Takumar 50/1,4 C 1000 1654222
Super-Takumar 50/1,4 B 1250 1582857
SMC Takumar 50/1,4 (F) B 1200 7353814
S-M-C MACRO-TAKUMAR 50/4 A 2500 4410622
SMC Takumar 55/1,8 (F) A 800 7018539
SMC Takumar 55/1,8 (F) B 800 7968637
SMC Takumar 55/1,8 (F) A 700 7917437
SMC Takumar 55/1,8 (F) B 700 7600772
SMC Takumar 55/1,8 (F) B 700 6691491
SMC Takumar 55/1,8 (F) A 700 5487801
Super-Takumar 55/1,8 A 750 2253314
Super-Takumar 55/2 (F) A 750 4980147
Super-Takumar 85/1,9 A 2500 889432
SMC Macro-Takumar 100/4 (F) A 2000 7725895
S-M-C Takumar 105/2,8 (F) A? 1500 4543531
S-M-C Takumar 105/2,8 (F) B 1500 5205235
Super-Takumar 135/2,5 A 1750 2504321
Takumar 135/3,5 A 750 385416
Takumar 200/3,5 w/Case A 1950 1440692
Takumar 200/3,5 w/Shade B 1750 229063
Tele-Takumar 200/5,6 A 950 3436960
01-13-2009, 09:27 AM   #11
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QuoteOriginally posted by jsherman999 Quote
If that's true, then those prices are pretty high (assuming 4th column is Krona?)

[/code]
Yeah, Canada's bigger than that. Or perhaps Emil has something else up his sleeve?

([prods him into revealing his secret]--just go along with it, guys)
01-13-2009, 09:46 AM   #12
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QuoteOriginally posted by thePiRaTE!! Quote
First link that comes up when one searches 'Leica on Pentax'

Leica & Pentax | Leitax

If you do this, I would be curious to see results!


Kelly.
Results are stunning..;I created a thread a few months ago, almost no one here paid attention....
you snooze, you loose!:ugh:
01-13-2009, 01:38 PM   #13
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they are kind of expensive, check out blocket.se or tradera(ebay, sweden)instead. I have seen many old lenses go for nothing there.
I think 2500 for a A 50/1,4 is stupid since a new FA50/1,4 goes for 2600.
01-13-2009, 01:42 PM   #14
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Don't forget T-Mount; that's M42 but it's 0.75mm pitch whereas the Pentax is 1.00mm. I found out the difference the hard way many years ago. Fortunately it was an adaptor I had to take the hacksaw to.
01-13-2009, 02:05 PM   #15
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QuoteOriginally posted by thePiRaTE!! Quote
First link that comes up when one searches 'Leica on Pentax'

Leica & Pentax | Leitax

If you do this, I would be curious to see results!


Kelly.
I got the leitax adaptor and Voe is working on a review and testing section on some of my leica lenses

35/2 50/2 and 90/2

Voe spoke of getting a summilux 50mm. I am really tempted to get one too.
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