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kyrcy
![Level 1 Level 1](rating1.gif) Joined: 23 Feb 2015 Posts: 124
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Posted: Tue Aug 16, 2016 4:42 pm Post subject: Pentacon 200mm f/4 |
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kyrcy wrote:
I am not sure if more than one version of the Pentacon 200mm f/4 exists, but I would like to ask about its performance and if it suffers considerably from chromatic and other aberrations. I do not have another lens of the same focal length but I do have a Jupiter-37A and a Tair-3S if someone can make a comparison to these. |
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Lloydy
![Level 4 Level 4](rating4.gif) Joined: 02 Sep 2009 Posts: 7785 Location: Ironbridge. UK.
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Posted: Tue Aug 16, 2016 10:10 pm Post subject: |
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Lloydy wrote:
The Pentacon 200 / 4 is my favourite 200, I can forgive it's size and weight when I see the pictures from it. And the f4 isn't bad either, I have faster and slower 200's, the beauty of the Pentacon is it's very good at f4.
This picture is possibly shot wide open, the DoF is fairly small and there are backlit branches in front and behind the Robin, and the CA is minimal, really very good I think.
100%
![](http://forum.mflenses.com/userpix/20168/1849_Robin_Pentacon_200_4_crop_1.jpg) _________________ LENSES & CAMERAS FOR SALE.....
I have loads of stuff that I have to get rid of, if you see me commenting about something I have got and you want one, ask me.
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kyrcy
![Level 1 Level 1](rating1.gif) Joined: 23 Feb 2015 Posts: 124
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Posted: Wed Aug 17, 2016 4:00 am Post subject: |
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kyrcy wrote:
Lloydy wrote: |
The Pentacon 200 / 4 is my favourite 200, I can forgive it's size and weight when I see the pictures from it. And the f4 isn't bad either, I have faster and slower 200's, the beauty of the Pentacon is it's very good at f4.
This picture is possibly shot wide open, the DoF is fairly small and there are backlit branches in front and behind the Robin, and the CA is minimal, really very good I think.
100%
![](http://forum.mflenses.com/userpix/20168/1849_Robin_Pentacon_200_4_crop_1.jpg) |
Does this lens have a collar to mount on a tripod? |
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Oldhand
![Level 4 Level 4](rating4.gif) Joined: 01 Apr 2013 Posts: 6008 Location: Mid North Coast NSW - Australia
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Posted: Wed Aug 17, 2016 4:50 am Post subject: |
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Oldhand wrote:
Does this lens have a collar to mount on a tripod?[/quote]
No, no tripod collar on this lens.
Most 200mm lenses don't have a tripod collar. The Takumar 3.5/200 has one but I can't think of any others - although there are probably more that I cannot recall.
OH
#1
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uddhava
![Level 4 Level 4](rating4.gif) Joined: 22 Aug 2012 Posts: 3071 Location: Hungary
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Posted: Wed Aug 17, 2016 8:18 am Post subject: |
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uddhava wrote:
Lloydy wrote: |
The Pentacon 200 / 4 is my favourite 200, I can forgive it's size and weight when I see the pictures from it. And the f4 isn't bad either, I have faster and slower 200's, the beauty of the Pentacon is it's very good at f4. |
Really? I will have to take mine out after reading this. I am glad to have a lens that is someones favorite. |
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Lloydy
![Level 4 Level 4](rating4.gif) Joined: 02 Sep 2009 Posts: 7785 Location: Ironbridge. UK.
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Posted: Wed Aug 17, 2016 8:55 am Post subject: |
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Lloydy wrote:
I use a tripod mount off an old SUN zoom lens, which was too big so I've used a strip of polythene cut from a 5l container which seems to be soft enough to grip onto the taper of the lens, it's never come loose once - and I use it a lot. The lens with the mount is my 'PentaMog' - half Pentacon and half Meyer Optik Gorlitz, as can be seen in the different styles of rings. The Pentacon is a really nice copy, but no better than the Pentamog. I think I have another Pentacon somewhere that's for sale.
![](http://forum.mflenses.com/userpix/20168/1849_Pentacon_200_1.jpg) _________________ LENSES & CAMERAS FOR SALE.....
I have loads of stuff that I have to get rid of, if you see me commenting about something I have got and you want one, ask me.
My Flickr https://www.flickr.com/photos/mudplugga/
My ipernity -
http://www.ipernity.com/home/294337 |
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marcusBMG
![Level 3 Level 3](rating3.gif) Joined: 07 Dec 2012 Posts: 1304 Location: Conwy N Wales
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Posted: Wed Aug 17, 2016 1:04 pm Post subject: |
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marcusBMG wrote:
One potential advantage of the Meyer/Pentacon 200mm is the detachable mount. I took the mount on mine to the local engineering shop and had them take off a couple of mm off the shoulder of the mount on the precision lathe. Now I can use a good quality flanged M42 to PK adapter. The mount has a very narrow base and used unaltered with the standard non flanged original M42- PK adapter was less stable and could allow light leaks (see here).
Good lens no doubt, I also like my tak 200mm f3.5. Both sharp. _________________ pentax ME super (retired)
Pentax K3-ii; pentax K-S2; Samsung NX 20; Lumix G1 + adapters;
Adaptall collection (proliferating!) inc 200-500mm 31A, 300mm f2.8, 400mm f4.
Primes: takumar 55mm; smc 28mm, 50mm; kino/komine 28mm f2's, helios 58mm, Tamron Nestar 400mm, novoflex 400mm, Vivitar 135mm close focus, 105mm macro; Jupiter 11A; CZJ 135mm.
A classic zoom or two: VS1 (komine), Kiron Zoomlock... |
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chhayanat
![Level 1 Level 1](rating1.gif) Joined: 11 Apr 2016 Posts: 242 Location: The Cow Belt
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Posted: Wed Aug 17, 2016 4:25 pm Post subject: |
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chhayanat wrote:
"...really very good I think."
I can't agree more
![Like 1](images/smiles/like-1.gif) _________________ Chhayanat
Pentax-M 28/2.8; 35/2; 50/1.4; 100/2.8; 80-200/4.5; 400/5.6.
Carl Zeiss Jena Flektogon 35/2.4; Pancolar 50/1.8 (black).
Film cameras:
Zeiss Ikon Volta 135/6.3 Sonnar 9cm x 12 cm plate/sheet film;
Zeiss Ikon Ikonta 521 75/3.5 Novar (post-War) 6cm x 4.5cm
Pentax MX x 2 (black);
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eeyore_nl
![Level 3 Level 3](rating3.gif) Joined: 09 Nov 2008 Posts: 837 Location: Netherlands
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Posted: Wed Aug 17, 2016 8:39 pm Post subject: |
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eeyore_nl wrote:
Very nice ... the Pentacon 4/200 is my favourite 200mm lens. _________________ Fujifilm X-Pro2 / Fujifilm X-T1 / some Sonnar & Takumar lenses |
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kyrcy
![Level 1 Level 1](rating1.gif) Joined: 23 Feb 2015 Posts: 124
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Posted: Thu Aug 18, 2016 4:09 am Post subject: |
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kyrcy wrote:
marcusBMG wrote: |
One potential advantage of the Meyer/Pentacon 200mm is the detachable mount. I took the mount on mine to the local engineering shop and had them take off a couple of mm off the shoulder of the mount on the precision lathe. Now I can use a good quality flanged M42 to PK adapter. The mount has a very narrow base and used unaltered with the standard non flanged original M42- PK adapter was less stable and could allow light leaks (see here).
Good lens no doubt, I also like my tak 200mm f3.5. Both sharp. |
What detachable mount? |
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marcusBMG
![Level 3 Level 3](rating3.gif) Joined: 07 Dec 2012 Posts: 1304 Location: Conwy N Wales
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Posted: Thu Aug 18, 2016 4:45 pm Post subject: |
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marcusBMG wrote:
kyrcy wrote: |
What detachable mount? |
This detachable mount:
![](http://forum.mflenses.com/userpix/20168/6337_meyer200mount_1.jpg) _________________ pentax ME super (retired)
Pentax K3-ii; pentax K-S2; Samsung NX 20; Lumix G1 + adapters;
Adaptall collection (proliferating!) inc 200-500mm 31A, 300mm f2.8, 400mm f4.
Primes: takumar 55mm; smc 28mm, 50mm; kino/komine 28mm f2's, helios 58mm, Tamron Nestar 400mm, novoflex 400mm, Vivitar 135mm close focus, 105mm macro; Jupiter 11A; CZJ 135mm.
A classic zoom or two: VS1 (komine), Kiron Zoomlock... |
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Lloydy
![Level 4 Level 4](rating4.gif) Joined: 02 Sep 2009 Posts: 7785 Location: Ironbridge. UK.
Expire: 2022-01-01
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Posted: Thu Aug 18, 2016 4:55 pm Post subject: |
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Lloydy wrote:
This is the Pentacon 135 lens, but the detachable mount is exactly the same and fits both 135 and 200's. The conical mount, usually Exacta or M42, fits the back of the lens and is secured by the threaded ring.
![](http://forum.mflenses.com/userpix/20168/1849_DSC01250_1.jpg) _________________ LENSES & CAMERAS FOR SALE.....
I have loads of stuff that I have to get rid of, if you see me commenting about something I have got and you want one, ask me.
My Flickr https://www.flickr.com/photos/mudplugga/
My ipernity -
http://www.ipernity.com/home/294337 |
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kyrcy
![Level 1 Level 1](rating1.gif) Joined: 23 Feb 2015 Posts: 124
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Posted: Mon Aug 22, 2016 8:25 am Post subject: |
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kyrcy wrote:
What is the use of the detachable mount on the lens? I can see no manual/auto switch or a pin to press and open the aperture. Is this a preset lens? Is there a way to lock aperture?
Last edited by kyrcy on Mon Aug 22, 2016 9:56 am; edited 3 times in total |
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Lloydy
![Level 4 Level 4](rating4.gif) Joined: 02 Sep 2009 Posts: 7785 Location: Ironbridge. UK.
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Posted: Mon Aug 22, 2016 8:45 am Post subject: |
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Lloydy wrote:
It's a preset lens, one sprung part of the aperture ring can be set to restrict the aperture to a maximun required, or it can be set at f22 and both parts of the aperture ring turn together, held together by the spring loading, and allows the aperture to be adjusted seamlessly through the entire range.
The detachable mount is an easy way of manufacturing the lens for different camera mounts. :: _________________ LENSES & CAMERAS FOR SALE.....
I have loads of stuff that I have to get rid of, if you see me commenting about something I have got and you want one, ask me.
My Flickr https://www.flickr.com/photos/mudplugga/
My ipernity -
http://www.ipernity.com/home/294337 |
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Excalibur
![Level 4 Level 4](rating4.gif) Joined: 19 Jul 2009 Posts: 5019 Location: UK
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Posted: Mon Aug 22, 2016 9:47 am Post subject: |
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Excalibur wrote:
eeyore_nl wrote: |
Very nice ... the Pentacon 4/200 is my favourite 200mm lens. |
Interesting as I have the Pentacon 4/200 and the Meyer Orestegor 4/200 Zebra with about 15 blades......I'll have to find out what the difference is, in results...and guessing it would be better background Bokeh. _________________ Canon A1, AV1, T70 & T90, EOS 300 and EOS300v, Chinon CE and CP-7M. Contax 139, Fuji STX-2, Konica Autoreflex TC, FS-1, FT-1, Minolta X-700, X-300, XD-11, SRT101b, Nikon EM, FM, F4, F90X, Olympus OM2, Pentax S3, Spotmatic, Pentax ME super, Praktica TL 5B, & BC1, , Ricoh KR10super, Yashica T5D, Bronica Etrs, Mamiya RB67 pro AND drum roll:- a Sony Nex 3
.........past gear Tele Rolleiflex and Rollei SL66.
Many lenses from good to excellent. |
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kyrcy
![Level 1 Level 1](rating1.gif) Joined: 23 Feb 2015 Posts: 124
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Posted: Mon Aug 22, 2016 10:27 am Post subject: |
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kyrcy wrote:
I took photos of the moon at the infinity mark of the lens and they seemed in focus, but photos of distance buildings at the same mark were slightly out of focus (and in focus between the 50m and infinity marks). Is this expected with this lens? I suppose the moon is closer to infinity than anything on earth, but does anyone know from experience if the infinity mark on the distance scale is accurate? |
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Excalibur
![Level 4 Level 4](rating4.gif) Joined: 19 Jul 2009 Posts: 5019 Location: UK
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Posted: Mon Aug 22, 2016 11:37 am Post subject: |
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Excalibur wrote:
kyrcy wrote: |
I took photos of the moon at the infinity mark of the lens and they seemed in focus, but photos of distance buildings at the same mark were slightly out of focus (and in focus between the 50m and infinity marks). Is this expected with this lens? I suppose the moon is closer to infinity than anything on earth, but does anyone know from experience if the infinity mark on the distance scale is accurate? |
Depends on the lens as I found quite a few of mine the focus is before the infinity stop..whether it was like it new I will never know...it's annoying as it would be nice if the infinity stop is the same as the sharp image and some guys here have adjusted their lenses or sent them to a repair shop. _________________ Canon A1, AV1, T70 & T90, EOS 300 and EOS300v, Chinon CE and CP-7M. Contax 139, Fuji STX-2, Konica Autoreflex TC, FS-1, FT-1, Minolta X-700, X-300, XD-11, SRT101b, Nikon EM, FM, F4, F90X, Olympus OM2, Pentax S3, Spotmatic, Pentax ME super, Praktica TL 5B, & BC1, , Ricoh KR10super, Yashica T5D, Bronica Etrs, Mamiya RB67 pro AND drum roll:- a Sony Nex 3
.........past gear Tele Rolleiflex and Rollei SL66.
Many lenses from good to excellent. |
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kyrcy
![Level 1 Level 1](rating1.gif) Joined: 23 Feb 2015 Posts: 124
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Posted: Mon Aug 22, 2016 6:43 pm Post subject: |
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kyrcy wrote:
Excalibur wrote: |
Depends on the lens as I found quite a few of mine the focus is before the infinity stop..whether it was like it new I will never know...it's annoying as it would be nice if the infinity stop is the same as the sharp image and some guys here have adjusted their lenses or sent them to a repair shop. |
More opinions about this problem from people that have the lens would be useful. The difference in focus is very slight but still noticeable. Has anyone managed to adjust focus or have it adjusted in a repair shop? |
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Lloydy
![Level 4 Level 4](rating4.gif) Joined: 02 Sep 2009 Posts: 7785 Location: Ironbridge. UK.
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Posted: Mon Aug 22, 2016 11:12 pm Post subject: |
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Lloydy wrote:
Excalibur wrote: |
eeyore_nl wrote: |
Very nice ... the Pentacon 4/200 is my favourite 200mm lens. |
Interesting as I have the Pentacon 4/200 and the Meyer Orestegor 4/200 Zebra with about 15 blades......I'll have to find out what the difference is, in results...and guessing it would be better background Bokeh. |
There is no difference, the lens pictured in my post earlier - the Pentamog with the tripod mount is made from parts of Pentacon and M.O.G. lenses, one was a zebra the other a newer version. _________________ LENSES & CAMERAS FOR SALE.....
I have loads of stuff that I have to get rid of, if you see me commenting about something I have got and you want one, ask me.
My Flickr https://www.flickr.com/photos/mudplugga/
My ipernity -
http://www.ipernity.com/home/294337 |
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Excalibur
![Level 4 Level 4](rating4.gif) Joined: 19 Jul 2009 Posts: 5019 Location: UK
Expire: 2014-04-21
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Posted: Tue Aug 23, 2016 6:37 am Post subject: |
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Excalibur wrote:
Lloydy wrote: |
Excalibur wrote: |
eeyore_nl wrote: |
Very nice ... the Pentacon 4/200 is my favourite 200mm lens. |
Interesting as I have the Pentacon 4/200 and the Meyer Orestegor 4/200 Zebra with about 15 blades......I'll have to find out what the difference is, in results...and guessing it would be better background Bokeh. |
There is no difference, the lens pictured in my post earlier - the Pentamog with the tripod mount is made from parts of Pentacon and M.O.G. lenses, one was a zebra the other a newer version. |
Also have the Fujinon T M42 4.5/200 which would be interesting in comparing to the Pentacon when I get round to it, but my results would be on film so not much use on this mainly digi forum ![Smile](images/smiles/icon_smile.gif) _________________ Canon A1, AV1, T70 & T90, EOS 300 and EOS300v, Chinon CE and CP-7M. Contax 139, Fuji STX-2, Konica Autoreflex TC, FS-1, FT-1, Minolta X-700, X-300, XD-11, SRT101b, Nikon EM, FM, F4, F90X, Olympus OM2, Pentax S3, Spotmatic, Pentax ME super, Praktica TL 5B, & BC1, , Ricoh KR10super, Yashica T5D, Bronica Etrs, Mamiya RB67 pro AND drum roll:- a Sony Nex 3
.........past gear Tele Rolleiflex and Rollei SL66.
Many lenses from good to excellent. |
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kyrcy
![Level 1 Level 1](rating1.gif) Joined: 23 Feb 2015 Posts: 124
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Posted: Tue Aug 23, 2016 9:18 am Post subject: |
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kyrcy wrote:
Can anyone with the Pentacon 200/4 confirm if infinity focus matches the infinity stop on the lens or if the infinity stop passes infinity focus? |
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Excalibur
![Level 4 Level 4](rating4.gif) Joined: 19 Jul 2009 Posts: 5019 Location: UK
Expire: 2014-04-21
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Posted: Tue Aug 23, 2016 10:22 am Post subject: |
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Excalibur wrote:
kyrcy wrote: |
Can anyone with the Pentacon 200/4 confirm if infinity focus matches the infinity stop on the lens or if the infinity stop passes infinity focus? |
Well just screwed my Pentacon onto a Chinon SLR and a tiny fraction before and at the infinity stop..and the image is sharpest....well I can't go past infinity stop to see if it's more sharper and the only way to find out would be large crops to see what I am getting at infinity ATM is OK. _________________ Canon A1, AV1, T70 & T90, EOS 300 and EOS300v, Chinon CE and CP-7M. Contax 139, Fuji STX-2, Konica Autoreflex TC, FS-1, FT-1, Minolta X-700, X-300, XD-11, SRT101b, Nikon EM, FM, F4, F90X, Olympus OM2, Pentax S3, Spotmatic, Pentax ME super, Praktica TL 5B, & BC1, , Ricoh KR10super, Yashica T5D, Bronica Etrs, Mamiya RB67 pro AND drum roll:- a Sony Nex 3
.........past gear Tele Rolleiflex and Rollei SL66.
Many lenses from good to excellent. |
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buerokratiehasser
![Level 2 Level 2](rating2.gif) Joined: 12 Jun 2011 Posts: 470
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Posted: Tue Aug 23, 2016 5:31 pm Post subject: |
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buerokratiehasser wrote:
The mount can be exchanged for a P6 back I suppose.
I never had a Pentacon tele so cannot help with the infinity problem.
Just a general observation, a 500/8 lens has quite thin DOF WO and is extremly difficult to focus really tack-y on the spot. A 200/4 should be somewhat relaxed but similar. There is quite some difference between focus at 2 km and focus at 5 km.
Didn't I hear about people modifying their lenses to remove the hard stop, so they could get the moon and star really in focus WO? Perhaps then your 200/4 is really infinity at infinity but your target building is not. |
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devinw
![Level 1 Level 1](rating1.gif) Joined: 19 Aug 2016 Posts: 207 Location: Portland, OR
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Posted: Tue Aug 23, 2016 6:04 pm Post subject: |
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devinw wrote:
kyrcy wrote: |
Can anyone with the Pentacon 200/4 confirm if infinity focus matches the infinity stop on the lens or if the infinity stop passes infinity focus? |
Pretty much all lens adapters are manufactured a little short of nominal, so you will be able to go past infinity on many lens/adapter combos. Some people shim them so the infinity stop is dead on. |
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kyrcy
![Level 1 Level 1](rating1.gif) Joined: 23 Feb 2015 Posts: 124
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Posted: Tue Aug 23, 2016 6:45 pm Post subject: |
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kyrcy wrote:
I took more photos and even the moon is not in focus at the infinity stop (but slightly before). So infinity stop does not seem to match with objects that there are close to infinity such as the moon. I do not want to shim the lens or adapter (the adapter should not be a problem anyway as it works fine with other lenses). But if focus can be adjusted in the lens I could take it for repair. |
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