If it was manufactured before sometime the mid 90's the first two digits
being 42 indicate that it was made by Bauer. Now I always thought that
Bauer was a third party lens seller who bought their products from
someone else, I could be wrong about that. By the way Mark Roberts has
the Vivitar serial number ID chart on his Vivitar Series 1 web page:
<http://www.robertstech.com/vivitar.htm#serialno> I saved off a copy
from the Third party Lens Megasite, but Mark's site is always up.
I haven't got a good solution to fungus, even if you were able to
disassemble the lens to get to it. There was a thread some time ago,
(several years ago IIRC), on the PDML where someone, I forget who now,
cleaned the fungus from a lens with saliva, which removed the fungus
though the actual glass surface of the element had been etched.
It seems to me that you're going to a lot of effort for a 10 buck lens,
on the other hand if you enjoy doing it why not.
On 8/23/2013 1:42 PM, Alan C wrote:
These things are not that common over here. R100 is about $10, so not
too much. The lens serial no. is 42027419 - perhaps you can identify
the manufacturer from that?
Finally, you are right - it simply close focus, marked as 1.5x.
Something about the fungus perhaps?
Alan
-----Original Message----- From: P.J. Alling
Sent: Friday, August 23, 2013 5:20 PM
To: Pentax-Discuss Mail List
Subject: Re: VIVITAR 75-200mm
Also if you paid more than $10 bucks for it you were taken. You can get
a pristine copy of one of those Vivitar f4, f4.5 maximum aperture zooms
for between $25 - $35, even in A mount. They were generally well built,
but not the best optically. In fact I think I'd rather have the later
Cosina made manual focus Series one lenses that seem to be generally
dismissed, unless the thing was literally given to me.
On 8/23/2013 11:04 AM, P.J. Alling wrote:
Vivitar sold a number of 70~75mm - 200~210mm lenses made by a number
of manufactures, it would help to know which particular one you were
talking about. It could be that "Macro" just means close focus,
(approximately 1:4 magnification), at it's maximum focal length.
On 8/23/2013 5:57 AM, Alan C wrote:
Picked up a Vivitar 75-200mm f4.5 MC MACRO FOCUSING ZOOM for a song.
It is an "A" lens & works well but unfortunately has a bit of fungus
inside (which doesn't seem to affect it's performance). Is there any
easy way I can get rid of it without stripping the lens? I read on
the web that the spores can get out & "infect" other lenses so I
don't know if that's a problem too. Lastly, maybe I'm dof, but I
can't figure out how to get into macro mode. It doesn't "pop" like a
similar Soligor lens.
Alan
--
A newspaper is a device for making the ignorant more ignorant, and the crazy,
crazier.
- H.L.Mencken
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