There were some A lenses with chips IIRC, the later A zoom lenses that
were sold with the ZX/MZ-M cameras, I believe that the A 35-80 4~5.6 was
pretty much the same as the F version electronically without an
autofocus motor, the same for the A 80-200 f4.7~5.6. I could be wrong
but I seem to
Definitely sounds like the kind of headache I'd rather pay someone else
to deal with.
On 7/15/2013 9:13 PM, Gerrit Visser wrote:
The circuitry, such as it is which is basically tiny brass balls shorting or
not shorting to the frame or one of the other balls, is directly below the
rear
You need the brass balls.
On Tue, Jul 16, 2013 at 10:58 AM, John johnsess...@yahoo.com wrote:
Definitely sounds like the kind of headache I'd rather pay someone else to
deal with.
On 7/15/2013 9:13 PM, Gerrit Visser wrote:
The circuitry, such as it is which is basically tiny brass balls
BIG brass ones I got, but no interest in messing around with little
teeny tiny ones.
On 7/16/2013 11:05 AM, Bruce Walker wrote:
You need the brass balls.
On Tue, Jul 16, 2013 at 10:58 AM, John johnsess...@yahoo.com wrote:
Definitely sounds like the kind of headache I'd rather pay someone
I dunno...I think it's pretty clear that your lens is F--'d.
;)
-p
On 7/15/2013 7:25 PM, John wrote:
Yeah. VERY VERY carefully, holding it over my head with the lens bayonet
facing down so nothing could fall inside.
I'm getting some kind of intermittent failure mode. I turn it on it
prompts
This is the first, and possibly only, dirty joke my Dad ever told his boys:
Q: how did orang utans get their name?
A: because they've got big brass balls, and when they swing through the trees
they go 'ora-a-a-ang! Uta-a-a-ang!'
B
On 16 Jul 2013, at 16:32, John johnsess...@yahoo.com wrote:
Try some contact cleaner. Be wary of how it interacts with the paint.
That should be pretty easy to fix.
On Tue, Jul 16, 2013 at 2:53 PM, Bob W p...@web-options.com wrote:
This is the first, and possibly only, dirty joke my Dad ever told his boys:
Q: how did orang utans get their name?
A:
Long years in the Army convinced me that a pencil eraser is the best
non-residue cleaner to use on these kind of external contacts.
It's not the camera because I cannot reproduce the symptom with any
other lens (i.e. F-- on the display when the lens is locked in the 'A'
position. I'm more and
Can you take a macro shot of the lens' contacts? That might show something..
Gerrit
-Original Message-
From: PDML [mailto:pdml-boun...@pdml.net] On Behalf Of John
Sent: Tuesday, July 16, 2013 4:56 PM
To: Pentax-Discuss Mail List
Subject: Re: This week starting out with a great big load
I finally dredge up enough motivation to actually go out and do some
photography. Got on site my favorite lens takes a crap on me.
My workhorse has been a Tokina ATX-Pro 287 28-70mmf/2.8. I got two
frames camera won't fire the shutter. Aperture shows F--. I do
everything I can to make sure
Did you try cleaning the contacts? There isn't an communication
between the lens and the camera for an A lens. It just reads the
contacts and determines aperture range. Try cleaning them.
On Mon, Jul 15, 2013 at 12:59 PM, John johnsess...@yahoo.com wrote:
I finally dredge up enough motivation to
On 7/15/2013 1:03 PM, Zos Xavius wrote:
Did you try cleaning the contacts? There isn't an communication
between the lens and the camera for an A lens. It just reads the
contacts and determines aperture range. Try cleaning them.
Yup. That was something I learned from Army radios.
Don't know
On Mon, Jul 15, 2013 at 01:40:18PM -0400, John wrote:
I guess it's time to start looking for a backup/replacement before it
fails for good. Looks like the only thing available is going to be
either the 28-70 F2.8 SIGMA EX ASPHERICAL (77) or the 24-70 F2.8 SIGMA
DG EX ASPHERICAL (82).
And John,
Did you clean the contacts on the camera as well?
Regards, Bob S.
On Mon, Jul 15, 2013 at 12:40 PM, John johnsess...@yahoo.com wrote:
On 7/15/2013 1:03 PM, Zos Xavius wrote:
Did you try cleaning the contacts? There isn't an communication
between the lens and the camera for an A
Yeah. VERY VERY carefully, holding it over my head with the lens bayonet
facing down so nothing could fall inside.
I'm getting some kind of intermittent failure mode. I turn it on it
prompts for a focal length. I select a focal length press Ok and I get
the F-- on the display.
I turn it
The circuitry, such as it is which is basically tiny brass balls shorting or
not shorting to the frame or one of the other balls, is directly below the
rear mounting ring. If you take that off, do it slowly so that you can see
which balls and springs go where. It could be something gunked up in
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