I am building a small colection of Pentax Brand (SMC) K mount manual focus
lenses.
Got quite a few from the 15mm-A to the 200mm-K
Today I got my most recetn addition, SMC-M 35mm/2.8, at a great price from
Ebay.
Its a userable collection, so nothing is suppossed to be pristine, just
If the aperture blades are noticeably slow, the lens is worthless
without investing in a CLA, and even then it may be useless depending on
the cause of the problem. You have no way of knowing how slow the
blades are, or if they are slow a consistent amount at each exposure and
at each aperture.
i suggest you get it fixed.
JCO
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Tiger Moses
Sent: Thursday, March 14, 2002 7:52 PM
To: [EMAIL PROTECTED]
Subject: performance question
I am building a small colection of Pentax Brand (SMC) K mount
how much over exposure will really depend upon how slow the blades are.
A minolta 135/3.5 i have come across had so slow blades that you can
presume your are always shooting at f3.5 :)
I have heard once the oil sets in, it only gets worse slowly. But thats
hearsay :)
On Thu, Mar 14, 2002 at
It may not be oil. I lost my wonderful Bow-Wow Takumar to water damage,
and the only noticeable symptom was a slow diaphragm. The shop looked
at it, and sent me a very devastating note, outlining the problems and
the chance of recovery. I put the lens in a shoe box and buried it in
the back
Tiger,
You ought to test it. My recollection is that I've had 2 M 28/2.8's with the
problem. They do show overexposure.
It's a matter of closing the aperture before the shutter fires. The blades
are spring loaded and held wide open while you focus (open aperture
metering). When you press
I know what water can do -- I had a old super-takumar which got drenched
and its aperture ring failed :)
On Thu, Mar 14, 2002 at 05:06:25PM -0800, Shel Belinkoff wrote:
It may not be oil. I lost my wonderful Bow-Wow Takumar to water damage,
and the only noticeable symptom was a slow
you're a
professional camera repair dude/dudette :)
Cheers,
Dave
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Nitin Garg
Sent: Thursday, March 14, 2002 8:01 PM
To: [EMAIL PROTECTED]
Subject: Re: performance question
snip
I have heard once the oil sets
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