Back in the fold and my first Pentax equipment failure!


jules

Link Posted 22/05/2022 - 16:05
16-85mm up the spout, chronic overexposure in all modes, been driving me nuts, I'd decided it was the Camera but it doesn't happen with any of the PLM glass I have, so it's going away to be replaced by something different?
Bit disappointed but it happens...

TBC
Cheers Jules...

My viewfinder is 576,000,000 pixels.
My other viewfinder is 5.76,000,000.

www.exaggeratedperspectives.com
Last Edited by jules on 22/05/2022 - 16:11

Mike-P

Link Posted 22/05/2022 - 16:11
Unusual for the 16-85mm ... I know there have been a few de-centred lenses but never heard of one giving up like that.

On another note I ordered a K-3 MKIII five minutes ago.
. My Flickr

jules

Link Posted 22/05/2022 - 16:13
Bwaahaha 😆 😂 I knew it, you can't help it, you're as bad as me!
Well nearly.
Cheers Jules...

My viewfinder is 576,000,000 pixels.
My other viewfinder is 5.76,000,000.

www.exaggeratedperspectives.com

Lubbyman

Link Posted 22/05/2022 - 16:15
jules wrote:
I'd decided it was the Camera but it doesn't happen with any of the PLM glass I have

The camera isn't ruled out yet. Don't bin the 16-85 until you've checked whether it happens with other non-PLM lenses - if it does, it's the camera not the lens. And if you know anyone nearby who has a Pentax, ask if you can try your 16-85 on their camera.

Steve

Chrism8

Link Posted 22/05/2022 - 16:23
Mike-P wrote:

On another note I ordered a K-3 MKIII five minutes ago.

I knew you would at some time Mike 😉
Chris

www.chrismillsphotography.co.uk

" A Hangover is something that occupies the Head you neglected to use the night before".

-------------------------------------------------------------
K1 - Sigma 85mm F1.4, Pentax DFA 150 -450 F4.5 / 5.6, Pentax DFA* 24 - 70 F2.8

Samyang 14mm F2.8, Pentax DFA* 70-200 F2.8

K3iii + K3ii + K5iis converted to IR, Sigma 17 - 70 F2.8, Pentax 55 - 300 F4.5 / F5.6 PLM

jules

Link Posted 22/05/2022 - 16:25
TBH I payed only twenty quid less than current to get mine used but I'm all in for a second one, so let me know if it doesn't work out!
He He
Cheers Jules...

My viewfinder is 576,000,000 pixels.
My other viewfinder is 5.76,000,000.

www.exaggeratedperspectives.com

jules

Link Posted 22/05/2022 - 16:30
Lubbyman wrote:
jules wrote:
I'd decided it was the Camera but it doesn't happen with any of the PLM glass I have

The camera isn't ruled out yet. Don't bin the 16-85 until you've checked whether it happens with other non-PLM lenses - if it does, it's the camera not the lens. And if you know anyone nearby who has a Pentax, ask if you can try your 16-85 on their camera.

Doesn't happen with my 70-210 which is SDM I think nor the 150-450 but no idea what that is?
DC?


Steve


Cheers Jules...

My viewfinder is 576,000,000 pixels.
My other viewfinder is 5.76,000,000.

www.exaggeratedperspectives.com
Last Edited by jules on 22/05/2022 - 16:40

Mike-P

Link Posted 22/05/2022 - 16:52
jules wrote:
TBH I payed only twenty quid less than current to get mine used but I'm all in for a second one, so let me know if it doesn't work out!
He He

It arrives Wednesday so first thing is to go out with the 150-450mm and Sigma 500mm f/4.5
Still have my DA* 16-50 f/2.8, 50-135mm & 55-300mm PLM ... wish I hadn't sold the 20-40mm though.
. My Flickr

Lubbyman

Link Posted 22/05/2022 - 21:51
jules wrote:
Lubbyman wrote:
Quote:
I'd decided it was the Camera but it doesn't happen with any of the PLM glass I have

The camera isn't ruled out yet. Don't bin the 16-85 until you've checked whether it happens with other non-PLM lenses - if it does, it's the camera not the lens. And if you know anyone nearby who has a Pentax, ask if you can try your 16-85 on their camera.

Doesn't happen with my 70-210 which is SDM I think nor the 150-450 but no idea what that is?
DC?


Steve


Since the problem is over-exposure, it's not likely to be related to the type of focus motor (PLM, DC, SDM, screw-drive). Does the aperture lever move across its full range and can you see it opening/closing the aperture? On the US forum, some people have reported screws or springs coming adrift and stopping the aperture from working.

Steve

Jonathan-Mac

Link Posted 22/05/2022 - 23:24
Does it overexpose wide open?
Pentax hybrid user - Digital K3, film 645 and 35mm SLR and Pentax (&other) lenses adapted to Fuji X and Panasonic L digital
Fan of DA limited and old manual lenses

jules

Link Posted 23/05/2022 - 08:48
Jonathan-Mac wrote:
Does it overexpose wide open?

Gone back from whence it came now, if it don't work I don't hang onto it, I now have a dilemma, do I buy a 16-50 PLM which kind of ties me to APSC, or Marantha's K1 and his 28-105???

K3 MkIII is a world away from anything that has come before, loving it so far!
Cheers Jules...

My viewfinder is 576,000,000 pixels.
My other viewfinder is 5.76,000,000.

www.exaggeratedperspectives.com
Last Edited by jules on 23/05/2022 - 08:49

Lubbyman

Link Posted 23/05/2022 - 08:52
jules wrote:
I now have a dilemma, do I buy a 16-50 PLM which kind of ties me to APSC, or Marantha's K1 and his 28-105???

There's only one right answer: Buy 'em all!!

Steve

Pwynnej

Link Posted 23/05/2022 - 09:05
Mike-P wrote:
Unusual for the 16-85mm ... I know there have been a few de-centred lenses but never heard of one giving up like that.

On another note I ordered a K-3 MKIII five minutes ago.

I really can't keep up with you Mike, I think you've gone through more cameras and lenses than DPReview...
Z-1p, K-1, P50
F50 1.7. FAs 24, 35, 50 1.4, 85, 135. DFA15-30, DFA24-70, D-FA*70-200. D-FA 100 (gone now!). The SMC-FA Limited Trinity.
Metz 45 CL-4, AF500FTZ. AF540FGZ.
Some Mamiya and some Nikon

jules

Link Posted 23/05/2022 - 09:39
Pwynnej wrote:
Mike-P wrote:
Unusual for the 16-85mm ... I know there have been a few de-centred lenses but never heard of one giving up like that.

On another note I ordered a K-3 MKIII five minutes ago.

I really can't keep up with you Mike, I think you've gone through more cameras and lenses than DPReview...

He's behind Me

Before Mr Pursey comments
Thinking I'll just go PLM and get another MkIII towards the end of the year or when Mike has finished with his
Cheers Jules...

My viewfinder is 576,000,000 pixels.
My other viewfinder is 5.76,000,000.

www.exaggeratedperspectives.com

1stEverPentax

Link Posted 23/05/2022 - 10:09
Mike-P wrote:
Unusual for the 16-85mm ... I know there have been a few de-centred lenses but never heard of one giving up like that.

On another note I ordered a K-3 MKIII five minutes ago.

I'm guessing that you'll be using it at an airshow or two Mike?

Would be interested to hear what you think once used on aircraft. Could be exactly what we've been looking for this past decade.

Sorry to hear about your 16-85 Jules...keep considering this lens but it does seem to have its share of problems and just a shame its not a bit faster at the long end.
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