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caribou
Joined: 22 May 2011
Posts: 44
Location: France
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 Posted: Sun Nov 13, 2011 2:44 pm Post subject: Zuiko 32mm for Pen EED |
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caribou wrote:
Hi everybody, I'm happy to show you a D.I.Y that makes me happy these days.
I was looking for a fast 35mm for my GF1. A thread on a french lumix-forum made me interested about the old Pen's lenses... I knew they are very good but I knew too they became very expensive... While looking for a "cheap" one I found this :
http://www.flickriver.com/photos/xy9z/sets/72157625850431038/ 
Mmmm, the hobbyist I am couldn't be indifferent...
So I found an old Pen EED on ebay (in fact I found two) not working and sold as is for 50€ and I made the adaptation.
I'm very happy with it, I much prefer 32mm than 20, 40 or 50 (on a µ4/3), and this one is very exciting, fast and very sharp at f/2,8 (almost as sharp as my 20mm Lumix, that is not the worst...) and nice at f/1,7.
Just two regrets, the focus ring is very small and close to the adapter ring, so focusing is not very confortable, I have to make another ring or modifying the existent one. Second there's only two blades for the diaphragm, making a square when closing... so the "bokeh" could be strange (but nevertheless interesting, specially for urban photography).
Showing the squared bokeh at f/2.8
f/1.7
f/4
Last edited by caribou on Sun Nov 13, 2011 4:52 pm; edited 1 time in total |
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ludoo
Joined: 18 Sep 2009
Posts: 1397
Location: Milan, Italy
Expire: 2011-12-05
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| Posted: Sun Nov 13, 2011 3:42 pm Post subject: |
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ludoo wrote:
Can you share details on how you adapted the lens? I have the same camera in parts, and using its lens seems a good idea.
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My galleries
Digital: Samsung EX-1
Past Digital: Samsung NX10, Sigma SD9, Sigma SD10, SD14, DP2, Pentax *istD, Kx, Fuji S2 Pro, Canon 5D
Analog: packfilm Polaroids, 6x9 Kodak folders, Pentacon Taxona half-frame, Fujica ST605n, Walz Envoy, Olympus 35 S-II, Olympus Wide S
Past Analog: Polaroid 600se, Polaroid 110B, Canon IIF, various fixed-lens and Russian rangefinders, ...
Past Lenses: Nikkor 24/2.8, Nikkor SC 50/1.4, Nikkor 50/2, Nikkor H 85/1.8, Nikkor P 105/2.5, Nikkor Q 135/3.5, Fujinon 100/2.8, Fujinon EBC 100/2.8, Fujinon EBC 135/3.5, Fujinon EBC 200/4.5, Mamiya SX 135/2.8, CZJ Flektogon 35/2.4, CZJ Pancolar 50/1.8 zebra, CZJ Sonnar 135/3.5, ...
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caribou
Joined: 22 May 2011
Posts: 44
Location: France
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| Posted: Sun Nov 13, 2011 4:48 pm Post subject: |
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caribou wrote:
| ludoo wrote: |
| and using its lens seems a good idea. |
For sure, you won't regret it.
| ludoo wrote: |
| Can you share details on how you adapted the lens? |
Well, it could be difficult for me due to my poor english... Mostly I followed that is shown on the link I posted on the first message :
http://www.flickriver.com/photos/xy9z/sets/72157625850431038/
One of the lens (I bought two) was easy to extract but gave me some difficulties for adapting (I guess the lens has been already extract, adapted and modified), the other one was hard to extract but easy to adapt... For both I had to unscrew the optical part, give one or two turn of the support (on the helicoïd) in order to get the focus at infinity. Hard to describe for me but easy to do in facts.
I made another modification on one of these two lens, change a piece for a longer one that allows focusing to shorter minimum length (without loosing infinity of course), now I can focus at a minimum of 30cm instead of the originals 80cm...
Focusing at 30cm (f/1.7)
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ludoo
Joined: 18 Sep 2009
Posts: 1397
Location: Milan, Italy
Expire: 2011-12-05
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| Posted: Sun Nov 13, 2011 6:29 pm Post subject: |
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ludoo wrote:
Thanks! I was wondering what adapter you used to attach the lens, and it's in our last picture.
_________________
My galleries
Digital: Samsung EX-1
Past Digital: Samsung NX10, Sigma SD9, Sigma SD10, SD14, DP2, Pentax *istD, Kx, Fuji S2 Pro, Canon 5D
Analog: packfilm Polaroids, 6x9 Kodak folders, Pentacon Taxona half-frame, Fujica ST605n, Walz Envoy, Olympus 35 S-II, Olympus Wide S
Past Analog: Polaroid 600se, Polaroid 110B, Canon IIF, various fixed-lens and Russian rangefinders, ...
Past Lenses: Nikkor 24/2.8, Nikkor SC 50/1.4, Nikkor 50/2, Nikkor H 85/1.8, Nikkor P 105/2.5, Nikkor Q 135/3.5, Fujinon 100/2.8, Fujinon EBC 100/2.8, Fujinon EBC 135/3.5, Fujinon EBC 200/4.5, Mamiya SX 135/2.8, CZJ Flektogon 35/2.4, CZJ Pancolar 50/1.8 zebra, CZJ Sonnar 135/3.5, ...
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stingOM
Joined: 27 Sep 2007
Posts: 3168
Location: Ireland
Expire: 2012-12-27
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| Posted: Sun Nov 13, 2011 6:40 pm Post subject: |
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stingOM wrote:
Wow, fantastic idea to rescue these old lenses! Is infinity focus achieved? |
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caribou
Joined: 22 May 2011
Posts: 44
Location: France
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| Posted: Sun Nov 13, 2011 7:38 pm Post subject: |
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caribou wrote:
Yes of course  |
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harry tibi
Joined: 11 Nov 2011
Posts: 58
Location: nl
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| Posted: Sun Nov 13, 2011 9:56 pm Post subject: |
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harry tibi wrote:
Nice! Should even be nicer on a half-frame=APS-C sensor, like the Nex. I will post an adaptation of an Agfa Color Solinar 2.8/30 I made. Beautiful how these old lenses turn out on modern camera's... I noticed prices of this old stuff rise as more and more people are discovering the secrets of old lens technology! |
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Fabian
Joined: 04 Dec 2011
Posts: 254
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| Posted: Thu Aug 23, 2012 11:42 pm Post subject: |
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Fabian wrote:
| caribou wrote: |
| I made another modification on one of these two lens, change a piece for a longer one that allows focusing to shorter minimum length (without loosing infinity of course), now I can focus at a minimum of 30cm instead of the originals 80cm... |
I recently fixed the focus-ring of my copy and it is in working condition again, could you describe how you made it that way?
Just remove the shorter one, turn the helicoid an extra round upwards, and put a longer one back in? |
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caribou
Joined: 22 May 2011
Posts: 44
Location: France
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| Posted: Fri Aug 24, 2012 5:56 pm Post subject: |
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caribou wrote:
Hi
Well, I don't remember the exact process but it is mainly like you described.
The new piece I've made is the brass one (instead of the "something like steel" one) on the last picture.
I have to say something, at this point it work well but there is nothing to stop the unscrewing of the focus ring, so there is a risk to totally unscrew it. Not a real bad problem but could be annoying when it happens out of the living room... I must put something to fix it. |
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Fabian
Joined: 04 Dec 2011
Posts: 254
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| Posted: Fri Aug 24, 2012 6:15 pm Post subject: |
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Fabian wrote:
Thanks for your quick response!
It doesn't stop anymore at the 80cm-mark? I thought because the helicoid gets up faster compared to the original placing the focussing range still would be 80cm to infinity, except mark 80cm would be 30cm real focus. If that isn't the case, any idea how to tackle that problem? Because close focus is nice. 
Are you sure the selfmade part is long enough? Edit: To think about it, it should be, otherwise rotating back would become a problem. |
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