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Olympus F.Zuiko 2/35 from PEN EM
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PostPosted: Fri Jul 26, 2013 10:04 pm    Post subject: Olympus F.Zuiko 2/35 from PEN EM Reply with quote

Does anyone know anything about this lens? I wasn't able to find out anything about it, just the specs of the camera. Anyone owned a PEN EM and can comment on it's IQ?

I'm gonna mount it for my NEX, I found it in a box of junk I've had for ages.



Quote:
The Olympus Pen EM went on sale in 1965 with three new features: an electronic shutter, automatic film advance, and automatic rewind.
The electronic shutter allowed an exposure range from 30 sec. down to 1/500 sec. according to the brightness of the subject. Power for the shutter, film advance and rewind systems was provided by two built-in AA batteries.
While the Olympus Pen EM had a major influence on the future of electronic technology and automation in cameras, there were manufacturing problems that could not be overcome with the technology then available. Sadly, production ceased after just one year.


PostPosted: Fri Jul 26, 2013 10:21 pm    Post subject: Reply with quote

Cannot comment on the EM specifically, but can point into a direction for mounting: L39 to NEX adapter, remove the L39 ring from it and you have those 3 screws to securely tighten the lens inside it. You might get beyond infinity because of the shorter register distance of NEX compared to MFT but I don't think you need the MFD on this lens?

The same looking 32mm f/1.7 from an PEN EED I had was very sharp at f/2.8, I doubt this one will be a huge difference.

Also if it renders the same you won't like the bokeh. Does this one have a square aperture as well?


PostPosted: Tue Aug 06, 2013 2:05 am    Post subject: Reply with quote

Thanks for the tips Fabian.

I removed the worst of the three lenses - four screws holds it on. This one has a dodgy aperture and is in fairly rough shape but has great glass. Took me a long time to dismantle the damn thing and remove the shutter blades. Then the only way I could fix the aperture was to remove one of the blades, so it now has a 5-bladed teardrop-shaped iris. I got it back together but now the helicoid seems to be reassembled wrong - it turns but I don't see anything moving back and forth and the aperture ring is really loose and wobbly, so I've turned it no junk, but it does still work, just doesn't focus and has a weird aperture. Oh well, learned a load of lessons about how to take it apart an put it back together, so I'll do better with the other two.

A quick test shot at ISO 800 wide open looks promising:



PostPosted: Tue Aug 06, 2013 9:48 am    Post subject: Reply with quote

Cool! Those Zuikos almost always look good!


PostPosted: Tue Aug 06, 2013 12:40 pm    Post subject: Reply with quote

I had the same problem, just disassemble it, put some thought in it and try again. There could be some small bended plate screwed at the inside of the back of the lens that keeps the helicoid in place when turning so it moves forward and backward, maybe that's the culprit.


PostPosted: Tue Aug 06, 2013 2:21 pm    Post subject: Reply with quote

Cheers guys. Some more wide open samples I quickly shot today. I really like it, it's very sharp, has strong contrast and very smooth, pleasing bokeh.

#1

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PostPosted: Tue Aug 06, 2013 2:46 pm    Post subject: Reply with quote

iangreenhalgh1 wrote:
and very smooth, pleasing bokeh.

I did not expect that, maybe a very different design.


PostPosted: Tue Aug 06, 2013 5:42 pm    Post subject: Reply with quote

Results looks very Zuiko'ish for sure, you should try to get some hasslefree Pen f lenses also (yes the prices are sky high on some of them, but they are special).

Try to get the 100mm 3.5 Pen lens, a stunning short tele still at reasonable price. Wink
A real sleeper.

Se my results when shooting raw with this lens on my OM-D
http://forum.mflenses.com/mix-with-olympus-f-zuiko-100mm-f-3-5-pen-ft-mount-t58974.html