:[EMAIL PROTECTED]
http://hjem.get2net.dk/bladt
-Oprindelig meddelelse-
Fra: Peter Smekal [mailto:[EMAIL PROTECTED]
Sendt: 29. marts 2005 16:54
Til: pentax-discuss@pdml.net
Emne: RE: RE *istD overexposure with manual lenses
Yes,
you'r probably on the right track. Its getting gradually
Jens, I think I exercised it 1000 times. Didn't make a difference. Off to
Pentax Sweden with the M28/2.8 and yes, they could fix it for 788 SEK,
that's about 110 USD. I think you could have one on ebay for less. the
question is however, how prone old M-lenses are for this kind of disease. I
have
Can't help with an explanation but can attest to the same experience
w/ M 50/1.7 and 28/2.8. I just go for a solid under-exposure and it
turns out well, but then again I do not plan on using them again as I
now go auto-focus. (If anyone wants the above two lenses for AUD130
plus postage email
What are you metering? If your scene includes a lot of shadow area and
no sky, you'll probably overexpose somewhat.
Paul
On Mar 29, 2005, at 7:26 AM, Peter Smekal wrote:
Hi folks,
I was trying out some of my K and M lenses on the *istD: 24/2.8,
M28/2.8,
35/2.8, M50/1.4, M85/2. I was really
The test scene is outside, buildings, the sky and few shadows. It really
should be the other way around, i.e. slightly underexposed due to the
relatively bright sky.
Peter
What are you metering? If your scene includes a lot of shadow area and
no sky, you'll probably overexpose somewhat.
Paul
On
Could it be because with K and M lenses you get center weighted
metering,
compared to the matrix metering with the FA and newer?
Antti-Pekka
Antti-Pekka Virjonen
Estera Oy Turku
www.estera.fi
www.computec.fi
-Original Message-
From: Peter
Maube, but why don't I have this problem with all the lenses, then?
Peter
Could it be because with K and M lenses you get center weighted
metering,
compared to the matrix metering with the FA and newer?
Antti-Pekka
Antti-Pekka Virjonen
Estera Oy Turku
Nope!
All my old lenses work just fine (A20, A28, M35, M1.7/50, K105, K135,
M4/200, M*300) - even my two Tamron Adaptall lenses work fine).
A possible explanation could be that old Pentax slow aperture syndrom -
the lenses stop down to slowly - if the have not been used for a long tim or
been
Jens,
its only two of the lenses that behave that way (M28 and M50/1.4). The
other work just fine.
Peter
Nope!
All my old lenses work just fine (A20, A28, M35, M1.7/50, K105, K135,
M4/200, M*300) - even my two Tamron Adaptall lenses work fine).
A possible explanation could be that old Pentax
Perhaps you have sticking aperture blades, and they don't stop down
sufficiently. I experienced that problem in the studio with flash lighting and
a sticky lens.
Paul
The test scene is outside, buildings, the sky and few shadows. It really
should be the other way around, i.e. slightly
PROTECTED]
Sent: Tuesday, March 29, 2005 8:35 AM
To: pentax-discuss@pdml.net
Subject: Re: RE *istD overexposure with manual lenses
Jens,
its only two of the lenses that behave that way (M28 and M50/1.4). The
other work just fine.
Peter
Nope!
All my old lenses work just fine (A20, A28
Subject: Re: RE *istD overexposure with manual lenses
Jens,
its only two of the lenses that behave that way (M28 and M50/1.4). The
other work just fine.
Peter
Nope!
All my old lenses work just fine (A20, A28, M35, M1.7/50, K105, K135,
M4/200, M*300) - even my two Tamron Adaptall lenses
I agree that you have a couple of lenses which need a cleaning.
The camera tech I usually go to charges 1-1.5 hours labor for most lens
CLA, about $75-100. He did my M85/2 ... the focusing helicoid had
become overly stiff because the lubricant had turned into a sticky
mass.
Godfrey
On Mar 29,
On Tue, 29 Mar 2005, Godfrey DiGiorgi wrote:
The camera tech I usually go to charges 1-1.5 hours labor for most lens
CLA, about $75-100. He did my M85/2 ... the focusing helicoid had
become overly stiff because the lubricant had turned into a sticky
mass.
I also use local technicians.
How about sticky aperture blades?
--
Best regards,
Bruce
Tuesday, March 29, 2005, 5:08:14 AM, you wrote:
PS The test scene is outside, buildings, the sky and few shadows. It really
PS should be the other way around, i.e. slightly underexposed due to the
PS relatively bright sky.
PS Peter
://hjem.get2net.dk/bladt
-Oprindelig meddelelse-
Fra: Peter Smekal [mailto:[EMAIL PROTECTED]
Sendt: 29. marts 2005 16:54
Til: pentax-discuss@pdml.net
Emne: RE: RE *istD overexposure with manual lenses
Yes,
you'r probably on the right track. Its getting gradually worse with smaller
apertures
, anyway :-)
Jens Bladt
mailto:[EMAIL PROTECTED]
http://hjem.get2net.dk/bladt
-Oprindelig meddelelse-
Fra: Peter Smekal [mailto:[EMAIL PROTECTED]
Sendt: 29. marts 2005 16:54
Til: pentax-discuss@pdml.net
Emne: RE: RE *istD overexposure with manual lenses
Yes,
you'r probably on the right
On Tue, 29 Mar 2005, Godfrey DiGiorgi wrote:
The camera tech I usually go to charges 1-1.5 hours labor for most lens
CLA, about $75-100. He did my M85/2 ... the focusing helicoid had
become overly stiff because the lubricant had turned into a sticky
mass.
I also use local technicians.
Kostas
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