CZJ 4/135 Triotar (Exakta) on Canon T3

[uddhava]

Bought this lens for a decent price ($20+$5 for shipping) and although dirty and worn, the glass was in good condition and it seems like a
good lens.
Here are some photos with extra contrast and some sharpening. Not the greatest shots because of the strong wind. Do you agree it is a good lens? Thank you for your opinion.

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[norland]

Judging by these pictures, I think it is very good lens.

[Oldhand]

Some strikingly good images there.
IQ per dollar - excellent!
OH

[iangreenhalgh1]

Looks excellent to me. I just bought one of these for a similar price, sadly it's full of fungus. I'll have to send it to be cleaned.

[uddhava]

Thanks for the replies.

I'm glad to hear that I have a good one.
I like using it even though it is a little long and so harder to hold still. I think that the weight is at the end of the lens since all of the glass is there.

Sorry to hear about your lens Ian, I hope it doesn't cost too much to clean it. Mine had some big pieces of lint inside, but fortunately no fungus.

Now I need a lot more practice and knowledge about photography and not just lens collecting. Besides, I ran out of money for it.

[iangreenhalgh1]

The fungus isn't too bad and will clean, reason I will send it to clean is I can't see any way of getting it open, no set screws, I have no idea how to do it.

[uddhava]

[uddhava]

Here are some photos of the lens, showing it's rough condition including what looks like a custom paint job.
Sorry cel phone photos.

[iangreenhalgh1]

Cheers for the info. Looks like a tricky job to get the damn thing open.

[cambug]

There are several versions for the Jena Triotar, IMHO, this version has the best mechanical built and easiest to work on. To open up the lens, there is a lock nut ring at the back (lens mount side), once losened and removed, the lens would be separated into two parts, the lens head and the focusing ring. There is also a spacer ring inside to adjust the focus. To clean the glass, just work on the lens head. Work on the focusing unit for stiff turning problem.

One interesting point for aluminum Jena lenses of different focal lengths is, the design is quite similar. Most of them, if not all, are with lens head plus a focusing unit. Lenses of different mounts, like M42 and Exakta, they share the same lens head, just with different focusing unit and are interchangeable. I tried these two types (M42 and Exakta), never tried the Praktina mount, so not 100% sure about it.

The Triotar also has a very interesting bokeh if it is used at its minimum focus and fully open, the image is comparable to the Trioplan. However because of the longer focal length, it is less easy to play with...