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balibm
Joined: 11 Sep 2009
Posts: 5
Location: Hungary
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 Posted: Thu Mar 10, 2011 10:11 am Post subject: Praktica PB adapter Wobble |
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balibm wrote:
I would like to ask those who own one of these:
next post 
if when mounting it on a PB lens it has an ugly play or not. It behaves as if the lens and the adapter would have a gap or such.
I only have one PB lens (prakticar 1.8 80) and thought it'd be worth a try to use it even if infinity is out of question. I have many M42 and C/Y lenses and none of them is loose when mounted on their adapter.
Your answer is much appreciated
Balazs
Last edited by balibm on Thu Mar 10, 2011 10:34 am; edited 3 times in total |
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Spotmatic
Joined: 18 Aug 2008
Posts: 4045
Location: Netherlands
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| Posted: Thu Mar 10, 2011 10:33 am Post subject: Re: Wobble |
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Spotmatic wrote:
| balibm wrote: |
I would like to ask those who own one of these:
if when mounting it on a PB lens it has an ugly play or not. It behaves as if the lens and the adapter would have a gap or such.
I only have one PB lens (prakticar 1.8 80) and thought it'd be worth a try to use it even if infinity is out of question. I have many M42 and C/Y lenses and none of them is loose when mounted on their adapter.
Your answer is much appreciated
Balazs |
Welcome Balazs! I have quoted your post as a new user's first post can not contain pictures. From now on you can post pictures.
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Peter - Moderator
Pentax K-5 + Pentax 645 + Canon 5D + Bessa RF 10,5cm Heliar, and a 'little' bag full of MF lenses. The lens list is * here *.
My fast 80s: Asahi-Kogaku Takumar 83mm f/1.9 - Super-Takumar 85mm f/1.9 - FA 77mm f/1.8 Limited - Cyclop 85/1.5 (Helios-40 innards) - Komura 80mm f/1.8 - Meyer Görlitz Primoplan 7,5cm 1:1.9 - Carl Zeiss Jena 80mm f/1.8 Pancolar - Canon 85mm f/1.8 S.S.C. - Canon 85mm f/1.2 S.S.C. Aspherical |
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balibm
Joined: 11 Sep 2009
Posts: 5
Location: Hungary
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| Posted: Thu Mar 10, 2011 10:36 am Post subject: |
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balibm wrote:
thanks much, thought my knowledge of html became a black hole all of a sudden |
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Spotmatic
Joined: 18 Aug 2008
Posts: 4045
Location: Netherlands
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| Posted: Thu Mar 10, 2011 10:41 am Post subject: |
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Spotmatic wrote:
| balibm wrote: |
| thanks much, thought my knowledge of html became a black hole all of a sudden |
All new users on this forum are usually puzzled 
Fine lens you have there! I have the M42 version, so I'm not much help with the PB mount version. But I'm sure other users will chime in.
_________________
Peter - Moderator
Pentax K-5 + Pentax 645 + Canon 5D + Bessa RF 10,5cm Heliar, and a 'little' bag full of MF lenses. The lens list is * here *.
My fast 80s: Asahi-Kogaku Takumar 83mm f/1.9 - Super-Takumar 85mm f/1.9 - FA 77mm f/1.8 Limited - Cyclop 85/1.5 (Helios-40 innards) - Komura 80mm f/1.8 - Meyer Görlitz Primoplan 7,5cm 1:1.9 - Carl Zeiss Jena 80mm f/1.8 Pancolar - Canon 85mm f/1.8 S.S.C. - Canon 85mm f/1.2 S.S.C. Aspherical |
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koji
Joined: 21 Jul 2008
Posts: 2106
Location: Hiroshima, Japan
Expire: 2012-12-27
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| Posted: Thu Mar 10, 2011 12:32 pm Post subject: |
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koji wrote:
If the adapter is too loose, there is one good advice by Calvin83 in here >
http://forum.mflenses.com/guide-on-adjusting-the-tightness-of-bayonet-type-adaptor-t37041.html
The lens Prakticar 1,8/80 is a genuine CZJ made, so if it is loose
it means the base metal of your adapter is thin which might give
you infinity focus.
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Our Home Page has 18,200 photos in 575 directories today.
Lenses: https://www.pbase.com/kkawakami/top_level_my_lenses |
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calvin83
Joined: 12 Apr 2009
Posts: 7554
Location: Hong Kong
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| Posted: Thu Mar 10, 2011 3:27 pm Post subject: |
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calvin83 wrote:
I never see any PB to EOS adaptor has infinity focus(a 0.4mm adaptor is not quiet feasible). If there is good PB to EOS adaptor, I would like to buy one if it is not so expensive. Moreover, these PB will not work on Canon full frame cameras.
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The best lens is the one you have with you.
Last edited by calvin83 on Thu Mar 10, 2011 5:02 pm; edited 1 time in total |
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koji
Joined: 21 Jul 2008
Posts: 2106
Location: Hiroshima, Japan
Expire: 2012-12-27
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| Posted: Thu Mar 10, 2011 4:56 pm Post subject: |
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koji wrote:
Yes, it is doubly true. Even if you can focus to infinity, you may end up
having a mirror hit problem with the most of Prakticars. I forgot about
my 5D mirror shaved a long ago. 
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Our Home Page has 18,200 photos in 575 directories today.
Lenses: https://www.pbase.com/kkawakami/top_level_my_lenses |
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balibm
Joined: 11 Sep 2009
Posts: 5
Location: Hungary
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| Posted: Thu Mar 10, 2011 5:35 pm Post subject: |
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balibm wrote:
Thank you much guys. When the lens is 'loose' infinity is not reached but at least it doesn't hit the mirror. When it's fully pressed against the camera body it gets to infinity perfectly but the mirror suffers. (fullframe body)
Have uploaded a couple in here for comparison (please see the balcony bars and the building @ far back):
as it is
fully pressed against the body
It's micromillimeters but it's there (images @f2.8, have not tried the f16 trick but not really interested in that as that does not seem to be a feature but a bug)
Thank you again, appreciate it. |
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calvin83
Joined: 12 Apr 2009
Posts: 7554
Location: Hong Kong
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| Posted: Fri Mar 11, 2011 4:14 am Post subject: |
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calvin83 wrote:
You can take good portraits with this great lens without infinity. Remember to share them with us.
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https://lensfever.com/
https://www.instagram.com/_lens_fever/
The best lens is the one you have with you. |
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balibm
Joined: 11 Sep 2009
Posts: 5
Location: Hungary
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| Posted: Wed Mar 16, 2011 8:08 pm Post subject: |
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balibm wrote:
just a couple of images of what the lens is capable of. fiddling with the adapter with a screwdriver proved to be a perfect solution for the wobble. thanks much Calvin
lab says sorry but he is always like this. we treat him like a prince and this is the reaction. ah well.
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calvin83
Joined: 12 Apr 2009
Posts: 7554
Location: Hong Kong
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| Posted: Thu Mar 17, 2011 3:44 am Post subject: |
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calvin83 wrote:
The bokeh is pleasant to me in #1. The little handsome prince did a great job too. 
_________________
https://lensfever.com/
https://www.instagram.com/_lens_fever/
The best lens is the one you have with you. |
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