How bad can a lens be........

I wonder if the idiot that smashed the Thorium Based Takumar knows that it emits Alpha Rays? The radioactive elements are inside the lens, and the Alpha rays can't penetrate. Now- if you smash it into Dust, and breathe it in- irradiate yourself- I suspect that suing Pentax won't get you very far.
 
Brian Sweeney said:
I wonder if the idiot that smashed the Thorium Based Takumar knows that it emits Alpha Rays? The radioactive elements are inside the lens, and the Alpha rays can't penetrate. Now- if you smash it into Dust, and breathe it in- irradiate yourself- I suspect that suing Pentax won't get you very far.
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Not to mention the fact that he destroyed a perfectly good lens. That yellowing goes away after a few days in the sun doesn't it?

Matthew
 
That lens looks like a Kiron. The same lens, a 28mm f2.5 was also sold as a Vivitar.

If so, it's a superb lens, very sharp and good even wide open.

You must have a mis-assembled, as suggested, or physically damaged lens. Maybe it was dropped.
 
M. Valdemar said:
That lens looks like a Kiron. The same lens, a 28mm f2.5 was also sold as a Vivitar.

If so, it's a superb lens, very sharp and good even wide open.

You must have a mis-assembled, as suggested, or physically damaged lens. Maybe it was dropped.
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I think you are right - it does resemble the early Vivitar lenses.
 
Brian Sweeney said:
I wonder if the idiot that smashed the Thorium Based Takumar knows that it emits Alpha Rays? The radioactive elements are inside the lens, and the Alpha rays can't penetrate. Now- if you smash it into Dust, and breathe it in- irradiate yourself- I suspect that suing Pentax won't get you very far.
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They are mixed into the glass; they are not rattling around loose in there. Smashed, they just mixed into glass chips instead of a big chunk of glass.
 
Matthew Allen said:
Not to mention the fact that he destroyed a perfectly good lens. That yellowing goes away after a few days in the sun doesn't it?

Matthew
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Opinions are somewhat divided on that. Apparently, sometimes it does and sometimes it doesn't. I've seen one Takumar that had actually gone past yellow and was into brown. I really doubt that setting it in the sun would have done much for that one. I agree that this was dumb though, unless he had already tried the sunlight fix. I put that up there mostly for its humor value.
 
FallisPhoto said:
They are mixed into the glass; they are not rattling around loose in there. Smashed, they just mixed into glass chips instead of a big chunk of glass.
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If you were to inhale any of the fine glass dust created by destroying the lens then you would be ingesting alpha particle emitting dust. Not a great idea though the risk is probably small in this case.

FallisPhoto said:
Opinions are somewhat divided on that. Apparently, sometimes it does and sometimes it doesn't. I've seen one Takumar that had actually gone past yellow and was into brown. I really doubt that setting it in the sun would have done much for that one. I agree that this was dumb though, unless he had already tried the sunlight fix. I put that up there mostly for its humor value.
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This particular lens didn't look bad though. I'm generally opposed to destruction for its own sake because so often there is someone else who could benefit from the object. Giving something away is much better karma then wrecking it in my opinion.

Matthew
 
i've got some Russian lenses with that kind of look , i have not used one on my M 8 ... but ... !!!
 
Matthew Allen said:
Interesting. Specialist soft-focus lenses where you vary the softness with the aperture cost serious money and are relatively rare. Seems like you've got a cheap one.

...

Matthew
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http://cgi.ebay.com/Fuji-85-4-Fujin...oryZ4688QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

As an example. Admittedly from a consistantly over priced seller. And did you look at the accompanying photo? And he calls it in remarkable shape. I guess I would have to agree, but not the way he is implying.
 
landsknechte said:
Gallagher comes to mind...
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Yeah, except he really lets you see him smash things and tries to add humor.

That photo is apparently post processed. The hammer has yet to touch the lens since it is not yet flattened, nor have any of the apparent fragments been pulled by gravity.

I agree that it is a dumb and wasteful thing to do. Must have been a real dull day in the outback of the poster's mind.
 
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