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VisualDarkness
Joined: 30 Oct 2011 Posts: 54 Location: Sweden
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Posted: Wed Feb 15, 2012 12:34 am Post subject: M39 for Pentax DSLR |
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VisualDarkness wrote:
Hi,
I just got a M42 to M39 adapter with some stuff and as I already got a genuine Pentax K to M42 I wonder which lenses I should look for. I know that the flange distance usually is way off for the K-mount but I'm still interested in perfectly working, modifiable and lenses that can work for macro stuff instead. Any suggestions? |
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luisalegria
Joined: 07 Mar 2008 Posts: 6602 Location: San Francisco, USA
Expire: 2018-01-18
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Posted: Wed Feb 15, 2012 3:05 am Post subject: |
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luisalegria wrote:
Any M39 135mm is usable for closeup at least.
Like this -
http://forum.mflenses.com/viewtopic,p,211654.html#211654 _________________ I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
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VisualDarkness
Joined: 30 Oct 2011 Posts: 54 Location: Sweden
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Posted: Wed Feb 15, 2012 3:13 am Post subject: |
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VisualDarkness wrote:
So these fellows like this can prove to actually be useful?
http://www.ebay.de/itm/110822538645?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649#ht_500wt_1287
How about 50mm lenses? Too short? |
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luisalegria
Joined: 07 Mar 2008 Posts: 6602 Location: San Francisco, USA
Expire: 2018-01-18
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Posted: Wed Feb 15, 2012 3:19 am Post subject: |
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luisalegria wrote:
The Jupiter ? Sure, why not. You should at least be able to get a close headshot.
50mm also, why not. It depends how close you want to go. _________________ I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
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VisualDarkness
Joined: 30 Oct 2011 Posts: 54 Location: Sweden
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luisalegria
Joined: 07 Mar 2008 Posts: 6602 Location: San Francisco, USA
Expire: 2018-01-18
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Posted: Wed Feb 15, 2012 4:47 am Post subject: |
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luisalegria wrote:
The Staeble Telexon - I'm not sure what mount that is. I have seen this type - exactly like this - for the Paxette, so it may be Paxette.
http://www001.upp.so-net.ne.jp/bearwalk/German/Braun.html
It may be Leica M39 because there seems to be the usual moving ring that contacts the rangefinder probe (other Leica mount lenses had a tongue arrangement) . I don't know if the Paxette mount had something like that too. The fog on the front is probably behind the front element and is probably cleanable, but you can never tell until you try. Its a very pretty lens.
The Paxette lenses seem to be the sort you mean. I can't say, I have never tried this experiment with them.
The Jupiter 12 is in a Contax/Kiev mount. I don't think there is any easy way to adapt it, and in particular that lens as the rear element is meant to go just a few millimeters from the film plane.
The Industar 22 should work as well as any M39 Leica type lens I suppose. I think your infinity will be under 10cm, but thats just a guess. _________________ I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
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Ymmot
Joined: 24 Sep 2011 Posts: 168
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Posted: Wed Feb 15, 2012 12:37 pm Post subject: |
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Ymmot wrote:
The Jupiter 12, afaik, indeed it has problems even on some rangefinders due to the protruding part into the camera.
Assuming your M39-M42 adapter is a simple treaded ring this will be trouble with the mirror for this lens.
Also the Industar 22 looks collapsible, so this may be problematic with the mirror as well if you happen to collapse it by accident?
Though I am not 100% sure, that jupiter 11 may actually be a Zenit M39 mount, meaning that a simple double treaded ring adapter may even get you infinity (register distance is about the same as M42 in that case). |
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RioRico
Joined: 12 Mar 2010 Posts: 1120 Location: California or Guatemala or somewhere
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Posted: Wed Feb 15, 2012 8:14 pm Post subject: |
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RioRico wrote:
Here's something I posted on PentaxForums - I know of four types of lenses with 39mm threads:
1) LTM - Leica threadmount -- these have a register of 28.8mm, much shorter than the Pentax-M42 register of 45.46mm, so they can never focus to infinity on a Pentax camera without either radical surgery or an optical adapter. These are usually sold as being for rangefinders.
2) M39 - These have a register close to or the same as the Pentax-M42 register of 45.46mm. With a simple M39-M42 ring and a thin-flange M42-PK adapter, these work fine on Pentax cameras. They may be promoted as being for SLRs like the Zenit.
3) L39 - These are mainly enlarger lenses, often German or Russian, less commonly from Japan or USA. They have no register as such. L39 lenses longer than 60mm may be used on our SLRs with some sort of extension: tubes, bellows, focusing helicoid, etc. Shorter L39s are only good for macros.
4) Unknown name and application - I've read of some items with 39mm x 0.75mm pitch, whereas all the LTM-M39-L39 lenses have 1mm pitch. I have not encountered any of these. If a 39mm-thread item doesn't screw easily onto an M39 lens or adapter, DO NOT TIGHTEN IT lest you strip the threads. _________________ Too many film+digi cams+lenses, oh my -- Pentax K20D, K-1000, M42s, more
The simple truth is this: There are no neutral photographs. --F-Stop Fitzgerald |
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Kamerer
Joined: 24 Jun 2008 Posts: 389 Location: Russia Moscow
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Posted: Mon Feb 20, 2012 7:01 am Post subject: |
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Kamerer wrote:
RioRico wrote: |
2) M39 - These have a register close to or the same as the Pentax-M42 register of 45.46mm. |
45,2mm
http://www.zenitcamera.com/archive/lenses/industar-22.html
Also made Industar-22 for the Zenith. _________________
Sony NEX-3 + NEX C3
MC Helios-44M-4
VMC Vivitar 28-90/2.8-3.5 Ser1
Pentakta 2/30
My texts are translated by the electronic translator. Best regards, Sergey.
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