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tardegardo
Joined: 10 Apr 2012
Posts: 42
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 Posted: Tue Apr 10, 2012 8:53 am Post subject: Porst 135mm f/1.8 |
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tardegardo wrote:
Hi everybody,
I know there are other topics about this lens. I open a new one because I am a bit confused.
I own this lens (found it at my wife's old house); bought a M42 adapter for my canon 5dmkII and put it on.
The problem is that I cannot infinite focus. I cheched the lens: i saw that it has another adapter attached on it.
I unscrewed it and found out a strange mount I never saw. Do I need another adapter to be able to use this lens with my 5d and keep infinite focus?
Here below pictures of lens with its own M42 adpater and without it.
Is it me or I can't upload pictures? |
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eddieitman
Joined: 12 Apr 2011
Posts: 1246
Location: United Kingdom
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| Posted: Tue Apr 10, 2012 9:10 am Post subject: Re: Porst 135mm f/1.8 |
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eddieitman wrote:
| tardegardo wrote: |
Hi everybody,
I know there are other topics about this lens. I open a new one because I am a bit confused.
I own this lens (found it at my wife's old house); bought a M42 adapter for my canon 5dmkII and put it on.
The problem is that I cannot infinite focus. I cheched the lens: i saw that it has another adapter attached on it.
I unscrewed it and found out a strange mount I never saw. Do I need another adapter to be able to use this lens with my 5d and keep infinite focus?
Here below pictures of lens with its own M42 adpater and without it.
Is it me or I can't upload pictures? |
Anti spam measure you can adter 1st post
Thats a t2 adaptor
Some adaptors may be to thick on your camera depends on manufacturer you can always buy t2 to eos
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My web site www.digital-darkroom.weebly.com
Life is like a camera. Focus on what's important, capture the good times, develop from the negatives and if things don't work out, just take another shot. |
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eddieitman
Joined: 12 Apr 2011
Posts: 1246
Location: United Kingdom
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| Posted: Tue Apr 10, 2012 9:17 am Post subject: |
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eddieitman wrote:
Something like this
http://item.mobileweb.ebay.com/viewitem?itemId=220937042209&index=2&nav=SEARCH&nid=60336106651
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My web site www.digital-darkroom.weebly.com
Life is like a camera. Focus on what's important, capture the good times, develop from the negatives and if things don't work out, just take another shot. |
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tardegardo
Joined: 10 Apr 2012
Posts: 42
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| Posted: Tue Apr 10, 2012 9:19 am Post subject: |
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tardegardo wrote:
thank you eddieitman,
do you think that with that adapter I'd keep infinite focus? |
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buerokratiehasser
Joined: 12 Jun 2011
Posts: 470
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| Posted: Tue Apr 10, 2012 9:48 am Post subject: |
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buerokratiehasser wrote:
Isn't T2 supposed to be M42 only with annoying differing slope?
I hear if you gum T2 into M42 it gets stuck. That would be consistent with the adaptor being Pentax-K TO T2. OTOH, people usually buy these to adapt T2 TO their camera, not the other way round. Can't really see anything on the "strange mount" clearly. |
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buerokratiehasser
Joined: 12 Jun 2011
Posts: 470
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| Posted: Tue Apr 10, 2012 9:50 am Post subject: |
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buerokratiehasser wrote:
Also, I have infinity problems too (on sony), it's a common issue with m42 adaptors that are mechanically a bit (like 20 µm I suppose) faulty |
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tardegardo
Joined: 10 Apr 2012
Posts: 42
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| Posted: Tue Apr 10, 2012 9:53 am Post subject: |
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tardegardo wrote:
| buerokratiehasser wrote: |
Isn't T2 supposed to be M42 only with annoying differing slope?
I hear if you gum T2 into M42 it gets stuck. That would be consistent with the adaptor being Pentax-K TO T2. OTOH, people usually buy these to adapt T2 TO their camera, not the other way round. Can't really see anything on the "strange mount" clearly. |
Yes T2 is kind of M42 "reversed": I noticed I can take the t2/m42 adapter, upside-down it, and screw on the lens.
But it's pretty useless… 
I need a t2 to eos adapter, and hope I can keep the infinite focus. |
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tardegardo
Joined: 10 Apr 2012
Posts: 42
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| Posted: Tue Apr 10, 2012 9:55 am Post subject: |
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tardegardo wrote:
| buerokratiehasser wrote: |
| Also, I have infinity problems too (on sony), it's a common issue with m42 adaptors that are mechanically a bit (like 20 µm I suppose) faulty |
I see… thank you by the way! |
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tardegardo
Joined: 10 Apr 2012
Posts: 42
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| Posted: Tue Apr 10, 2012 7:43 pm Post subject: |
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tardegardo wrote:
I solved the infinite focus problem. I realized the lens had a strange small ring mounted on. It is clearly visible on the second pic. I managed to unscrew it and now it works just fine. M42 native.
And I love this lens. Specially from 2.8 on.
I will soon try it on a m4/3 body too. |
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ManualFocus-G
Joined: 29 Dec 2008
Posts: 6622
Location: United Kingdom
Expire: 2014-11-24
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| Posted: Tue Apr 10, 2012 8:00 pm Post subject: |
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ManualFocus-G wrote:
| tardegardo wrote: |
I solved the infinite focus problem. I realized the lens had a strange small ring mounted on. It is clearly visible on the second pic. I managed to unscrew it and now it works just fine. M42 native.
And I love this lens. Specially from 2.8 on.
I will soon try it on a m4/3 body too. |
That ring is the inside of the T-mount. Looks like someone screwed a T-mount onto the M42 mount...weird! Glad you got it sorted!
_________________
Graham - Moderator 
Shooter of choice: Fujifilm X-T20 with M42, PB and C/Y lenses
See my Flickr photos at http://www.flickr.com/photos/manualfocus-g |
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luisalegria
Joined: 07 Mar 2008
Posts: 6602
Location: San Francisco, USA
Expire: 2018-01-18
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| Posted: Tue Apr 10, 2012 8:07 pm Post subject: |
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luisalegria wrote:
Maybe somebody wanted to use it as an "ersatz" macro ring.
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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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tardegardo
Joined: 10 Apr 2012
Posts: 42
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| Posted: Tue Apr 10, 2012 8:08 pm Post subject: |
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tardegardo wrote:
| ManualFocus-G wrote: |
| tardegardo wrote: |
I solved the infinite focus problem. I realized the lens had a strange small ring mounted on. It is clearly visible on the second pic. I managed to unscrew it and now it works just fine. M42 native.
And I love this lens. Specially from 2.8 on.
I will soon try it on a m4/3 body too. |
That ring is the inside of the T-mount. Looks like someone screwed a T-mount onto the M42 mount...weird! Glad you got it sorted! |
Yes, exactly.
Now I am looking for an altrrnate focusing screen that makes easyer to focus with this lens.
Any suggestion for the 5dmkII? |
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hoacker
Joined: 01 May 2011
Posts: 89
Location: Germany, S�dhessen
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| Posted: Tue Apr 10, 2012 8:14 pm Post subject: |
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hoacker wrote:
| tardegardo wrote: |
Now I am looking for an altrrnate focusing screen that makes easyer to focus with this lens.
Any suggestion for the 5dmkII? |
I'm very happy with the EE-S in my 5D I (got a 1.8/135 as well  ). For the 5D II that would be the EG-S. I once tried a split image screen from focussingscreen.com but I found the focus mark in the centre of the split image annoying.
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Holger
Cameras: Canon EOS 5D, 7D, 1000Da, M
Manual lenses: Zeiss Distagon 3,5/18 ZE, Nikon PC-Nikkor 28mm 1:3.5, Olympus OM 28 f/2,0, Zeiss Distagon 2/35 ZE, Leitz Summicron-R 1:2/50, Minolta MC ROKKOR 1:1.2 f=58mm (EOS-Mod), LZOS MC Jupiter-9 2/85, Meyer-Optik G�rlitz Trioplan 1:2.8/100 V (Exa), Zeiss Macro Planar 2/100 ZE, Nikon Nikkor-P.C Auto 1:2.5 f=105mm, Schneider-Kreuznach Componar 1:4,5/105, Porst Tele 1:1,8/135mm MC AUTO (M42), Cosina Auto Cosinon 135mm/2.8 (M42), Makinon MC 1:5.6 300mm Reflex, LZOS MTO 1000A 10,5/1100
AF lenses: Canon EF-S 17-55 f/2,8 IS USM, Canon EF-M 22mm 1:2 STM, Canon EF 40 f/2,8 STM, Canon EF-S 60 f/2,8 USM, Canon EF 200 1:2.8L II USM, Canon EF 500 f/4L IS USM, Canon Extender 1,4x III, Sigma 50-150/2,8 EX DC APO HSM II, Sigma 150 f/2,8 HSM, Sigma APO Tele Converter 1.4x EX DG, Sigma APO Tele Converter 2x EX DG, Kenko Extension Tubes
For sale (PM me): E.Zuiko Auto-T 1:3,5 f=100mm (Pen F), Zeiss Planar 85 f/1,4 (C/Y)
Some pictures at Flickr |
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tardegardo
Joined: 10 Apr 2012
Posts: 42
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| Posted: Wed Apr 11, 2012 5:18 am Post subject: |
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tardegardo wrote:
| hoacker wrote: |
| tardegardo wrote: |
Now I am looking for an altrrnate focusing screen that makes easyer to focus with this lens.
Any suggestion for the 5dmkII? |
I'm very happy with the EE-S in my 5D I (got a 1.8/135 as well ). For the 5D II that would be the EG-S. I once tried a split image screen from focussingscreen.com but I found the focus mark in the centre of the split image annoying. |
I'll give it a try then, thank you! I've heard that it should be used only on very wide open lenses. Do you mount it only in combination with the 135/1.8? What happens if I keep it with my 24-105f/4? |
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hoacker
Joined: 01 May 2011
Posts: 89
Location: Germany, S�dhessen
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| Posted: Wed Apr 11, 2012 6:29 am Post subject: |
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hoacker wrote:
If have the EE-S in the 5D all the time as I only use manual focus lenses with this camera. The slowest manual lens I use ist the MIR-20m with a maximum aperture of 3.5. The screen is fine with that lens, too.
_________________
Holger
Cameras: Canon EOS 5D, 7D, 1000Da, M
Manual lenses: Zeiss Distagon 3,5/18 ZE, Nikon PC-Nikkor 28mm 1:3.5, Olympus OM 28 f/2,0, Zeiss Distagon 2/35 ZE, Leitz Summicron-R 1:2/50, Minolta MC ROKKOR 1:1.2 f=58mm (EOS-Mod), LZOS MC Jupiter-9 2/85, Meyer-Optik G�rlitz Trioplan 1:2.8/100 V (Exa), Zeiss Macro Planar 2/100 ZE, Nikon Nikkor-P.C Auto 1:2.5 f=105mm, Schneider-Kreuznach Componar 1:4,5/105, Porst Tele 1:1,8/135mm MC AUTO (M42), Cosina Auto Cosinon 135mm/2.8 (M42), Makinon MC 1:5.6 300mm Reflex, LZOS MTO 1000A 10,5/1100
AF lenses: Canon EF-S 17-55 f/2,8 IS USM, Canon EF-M 22mm 1:2 STM, Canon EF 40 f/2,8 STM, Canon EF-S 60 f/2,8 USM, Canon EF 200 1:2.8L II USM, Canon EF 500 f/4L IS USM, Canon Extender 1,4x III, Sigma 50-150/2,8 EX DC APO HSM II, Sigma 150 f/2,8 HSM, Sigma APO Tele Converter 1.4x EX DG, Sigma APO Tele Converter 2x EX DG, Kenko Extension Tubes
For sale (PM me): E.Zuiko Auto-T 1:3,5 f=100mm (Pen F), Zeiss Planar 85 f/1,4 (C/Y)
Some pictures at Flickr |
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ManualFocus-G
Joined: 29 Dec 2008
Posts: 6622
Location: United Kingdom
Expire: 2014-11-24
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| Posted: Wed Apr 11, 2012 6:55 am Post subject: |
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ManualFocus-G wrote:
| hoacker wrote: |
| If have the EE-S in the 5D all the time as I only use manual focus lenses with this camera. The slowest manual lens I use ist the MIR-20m with a maximum aperture of 3.5. The screen is fine with that lens, too. |
+1, viewfinder is a bit darker but focusing is much more accurate with large aperture lenses.
_________________
Graham - Moderator
Shooter of choice: Fujifilm X-T20 with M42, PB and C/Y lenses
See my Flickr photos at http://www.flickr.com/photos/manualfocus-g |
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Olivier
Joined: 18 Feb 2009
Posts: 5078
Location: France
Expire: 2015-08-06
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| Posted: Wed Apr 11, 2012 9:24 pm Post subject: |
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Olivier wrote:
I have the Eg-D focusing screen with grid and I find it fine with all my MF lenses, including large apertures (f:1.2, 1.4, 1.5).
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Olivier - Moderator 
Dslr : Olympus Pen E-P2 - Fujifilm X-Pro2 - Canon 5D MkII.
SLr and MF lenses : for feedback and helping people, cameras and lenses I own : full list here http://forum.mflenses.com/viewtopic,p,1442740.html#1442740 |
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tardegardo
Joined: 10 Apr 2012
Posts: 42
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| Posted: Thu Apr 12, 2012 4:34 pm Post subject: |
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tardegardo wrote:
Ok, back to the topic, I managed to mount the porst on my 5dmk2 and on the e-pl2 too!
Pics are really nice, on m4/3 the 135mm become 270mm, pretty hard to focus, but it seems sharp at F/1.8 too.
I have also a Porst 55mm 1.4. It seems nice too. Sharp images and vivid colors. I could test the 55mm only on the e-pl2 because on the 5dmk2 the mirror hits the lens; and I could test it only at f1.4 since the aperture ring is broken…!
Last edited by tardegardo on Thu Apr 12, 2012 4:44 pm; edited 2 times in total |
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Olivier
Joined: 18 Feb 2009
Posts: 5078
Location: France
Expire: 2015-08-06
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| Posted: Thu Apr 12, 2012 5:49 pm Post subject: |
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Olivier wrote:
You can test it on the 5D² by using liveview (mirror is up when in liveview mode).
Just don't forget to switch back the lens before going out of liveview mode.
Some large aperture lenses working fine on 5D² : Nikkor 55mm S.C f:1.2 and Nikkor 50mm S.C. f:1.4
_________________
Olivier - Moderator
Dslr : Olympus Pen E-P2 - Fujifilm X-Pro2 - Canon 5D MkII.
SLr and MF lenses : for feedback and helping people, cameras and lenses I own : full list here http://forum.mflenses.com/viewtopic,p,1442740.html#1442740 |
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tardegardo
Joined: 10 Apr 2012
Posts: 42
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| Posted: Thu Apr 12, 2012 5:59 pm Post subject: |
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tardegardo wrote:
| Olivier wrote: |
You can test it on the 5D² by using liveview (mirror is up when in liveview mode).
Just don't forget to switch back the lens before going out of liveview mode.
Some large aperture lenses working fine on 5D² : Nikkor 55mm S.C f:1.2 and Nikkor 50mm S.C. f:1.4 |
Grat tips!
thanks! |
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