CZJ Triotar 4/135 - aaaaah, now I know...

Mal1905 · Joined: 30 Oct 2008 Posts: 1507 Location: Dublin, Ireland

...why it was so cheap - looking through the barrel when the diaphragm is fully open, there seems to be a fair bit of distortion.

Boozy bokeh @ f/4...

...but it's gone berserk @ f/5.6...

...yet looks reasonably sane @ f/8...

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Spotmatic · Joined: 18 Aug 2008 Posts: 2498 Location: Netherlands

Wow, that's extraordinary. A photoshop filter from an age where Photoshop still was a wet dream. Very Happy

I would love to see more examples!
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Nesster · Joined: 24 Apr 2008 Posts: 2981 Location: NJ, USA

You can always sell it as a 'telephoto lensbaby'
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Mal1905 · Joined: 30 Oct 2008 Posts: 1507 Location: Dublin, Ireland

Attila · Joined: 24 Feb 2007 Posts: 31429 Location: Budapest,Hungary

This lens has misaligned elements. Triotar is a great lens Orio made brilliant samples with his copy.
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luisalegria · Posted: Tue May 12, 2009 9:53 pm Post subject:

Missing element ?

Someone opened it and didn't put the glass back in properly ?

This is actually not a difficult lens to work on, if you know the trick.
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Attila · Joined: 24 Feb 2007 Posts: 31429 Location: Budapest,Hungary

Mal1905 · Joined: 30 Oct 2008 Posts: 1507 Location: Dublin, Ireland

Mal1905 · Joined: 30 Oct 2008 Posts: 1507 Location: Dublin, Ireland

Attila · Joined: 24 Feb 2007 Posts: 31429 Location: Budapest,Hungary

In this case you are lucky Luis will let you know how to open it and you able to fix it I am pretty sure.
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Panasonic G-1
Konica 4/21,2.8/24,2/35,2.8/35,1.8/40,1.7/50,1.8/52,1.2/57,1.8/85,2.8/100,3.2/135,3,5/200,4.5/300,4,5/400
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Please visit my Ebay shop
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luisalegria · Posted: Tue May 12, 2009 10:39 pm Post subject:

If yours is the common alu version like this -

http://forum.mflenses.com/czj-triotar-135-4-exakta-total-overhaul-t9326,highlight,triotar.html

This lens has three elements, two in a cell in front of the diaphragm and one behind it.

Front elements are removed by the usual method of unscrewing the name ring with a rubber tool and then the whole front cell comes out with a lens spanner. You can remove each element with a lens spanner. I bet the problem is there, someone probably opened that, loosened the elements and didn't put them back properly.

The trick on this one is getting at the rear element (if you have to). Inside the lens mount - inside the barrel of the lens looking from the back - there is a tube with two slots. You need to insert a tool, like a bar of metal inside the lens to fit in these slots. I used an old key. You can turn that with pliers and unscrew that tube. That loosens the whole lens and you can take it apart easily from there. The whole lens head with diaphragm can be removed.
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Bruce · Joined: 15 Jan 2008 Posts: 464 Location: Boston, Ma USA

I agree, something not right about your Triotar. Mine works awesome. But I kinda like your "Boozy Bokeh", is that the trade name now?
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LucisPictor · Posted: Wed May 13, 2009 5:37 am Post subject:

I guess an internal element has been flipped around.
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poilu · Joined: 26 Aug 2007 Posts: 6703 Location: Greece

good luck Mal
with only 3 elements, you will not have many combinations to try Laughing

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no-X · Posted: Wed May 13, 2009 7:44 am Post subject:

The inner surfaces of the front and rear element should be flatter than the outer ones:

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