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Pentax 18-250 - stuck in the "locked" zoomed out position

IP
Igor PDML-StR
Tue, Jun 14, 2022 3:37 PM

Hi All!

I have Pentax 18-250 lens - the one designed with (by) Tamron, - the
earlier version of it. Suddenly, I cannot zoom in with it, - it is stuck
in the shortest focal length position.
This lens has a "lock" - to prevent it from extending accidentally (under
its own weight). I wonder if something happened inside this lock, and the
top piece is not engaged with the inner part of the locking mechanism.

Has anybody experienced this?
Has anybody seen a drawing of this lock's design?
Any suggestions on how to get it "unstuck"?

Igor

Hi All! I have Pentax 18-250 lens - the one designed with (by) Tamron, - the earlier version of it. Suddenly, I cannot zoom in with it, - it is stuck in the shortest focal length position. This lens has a "lock" - to prevent it from extending accidentally (under its own weight). I wonder if something happened inside this lock, and the top piece is not engaged with the inner part of the locking mechanism. Has anybody experienced this? Has anybody seen a drawing of this lock's design? Any suggestions on how to get it "unstuck"? Igor
UN
Underpaid N. Overpentaxed
Tue, Jun 14, 2022 3:42 PM

I had that. Known issue. Pentax EU HQ in Germany fixed mine free of charge.
I know the son of their retired head of service. I can try to ask.
Cheers
Eck

Igor PDML-StR pdmlstr@komkon.org schrieb am Di. 14. Juni 2022 um 17:37:

Hi All!

I have Pentax 18-250 lens - the one designed with (by) Tamron, - the
earlier version of it. Suddenly, I cannot zoom in with it, - it is stuck
in the shortest focal length position.
This lens has a "lock" - to prevent it from extending accidentally (under
its own weight). I wonder if something happened inside this lock, and the
top piece is not engaged with the inner part of the locking mechanism.

Has anybody experienced this?
Has anybody seen a drawing of this lock's design?
Any suggestions on how to get it "unstuck"?

Igor

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I had that. Known issue. Pentax EU HQ in Germany fixed mine free of charge. I know the son of their retired head of service. I can try to ask. Cheers Eck Igor PDML-StR <pdmlstr@komkon.org> schrieb am Di. 14. Juni 2022 um 17:37: > > Hi All! > > I have Pentax 18-250 lens - the one designed with (by) Tamron, - the > earlier version of it. Suddenly, I cannot zoom in with it, - it is stuck > in the shortest focal length position. > This lens has a "lock" - to prevent it from extending accidentally (under > its own weight). I wonder if something happened inside this lock, and the > top piece is not engaged with the inner part of the locking mechanism. > > Has anybody experienced this? > Has anybody seen a drawing of this lock's design? > Any suggestions on how to get it "unstuck"? > > > Igor > -- > %(real_name)s Pentax-Discuss Mail List > To unsubscribe send an email to pdml-leave@pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. >
IP
Igor PDML-StR
Tue, Jun 14, 2022 8:47 PM

Thank you! If it is not a big problem for you to ask about the culprit
(see below), - I'd appreciate.

I've found this "recipe" and tempted to try it:
http://usefulbulk.com/pentaxlens/

I wonder how "universal" the solution (and the culprit) discussed there.

I am also thinking how to deal with the rubber grip (Is it glued? What
would I do if it breaks?)

All suggestions are appreciated.

BTW, my FA 77/1.8 Ltd 's focus also got stuck on the same day.
Outbreak of Lensovid-22? ;-)

Igor

Underpaid N. Overpentaxed Tue, 14 Jun 2022 08:42:27 -0700

I had that. Known issue. Pentax EU HQ in Germany fixed mine free of
charge.
I know the son of their retired head of service. I can try to ask.
Cheers
Eck

Igor PDML-StR pdml...@komkon.org schrieb am Di. 14. Juni 2022 um 17:37:

On Tue, 14 Jun 2022, Igor PDML-StR wrote:

Hi All!

I have Pentax 18-250 lens - the one designed with (by) Tamron, - the earlier
version of it. Suddenly, I cannot zoom in with it, - it is stuck in the
shortest focal length position.
This lens has a "lock" - to prevent it from extending accidentally (under its
own weight). I wonder if something happened inside this lock, and the top
piece is not engaged with the inner part of the locking mechanism.

Has anybody experienced this?
Has anybody seen a drawing of this lock's design?
Any suggestions on how to get it "unstuck"?

Igor

Thank you! If it is not a big problem for you to ask about the culprit (see below), - I'd appreciate. I've found this "recipe" and tempted to try it: http://usefulbulk.com/pentaxlens/ I wonder how "universal" the solution (and the culprit) discussed there. I am also thinking how to deal with the rubber grip (Is it glued? What would I do if it breaks?) All suggestions are appreciated. BTW, my FA 77/1.8 Ltd 's focus also got stuck on the same day. Outbreak of Lensovid-22? ;-) Igor Underpaid N. Overpentaxed Tue, 14 Jun 2022 08:42:27 -0700 I had that. Known issue. Pentax EU HQ in Germany fixed mine free of charge. I know the son of their retired head of service. I can try to ask. Cheers Eck Igor PDML-StR <pdml...@komkon.org> schrieb am Di. 14. Juni 2022 um 17:37: On Tue, 14 Jun 2022, Igor PDML-StR wrote: > > Hi All! > > I have Pentax 18-250 lens - the one designed with (by) Tamron, - the earlier > version of it. Suddenly, I cannot zoom in with it, - it is stuck in the > shortest focal length position. > This lens has a "lock" - to prevent it from extending accidentally (under its > own weight). I wonder if something happened inside this lock, and the top > piece is not engaged with the inner part of the locking mechanism. > > Has anybody experienced this? > Has anybody seen a drawing of this lock's design? > Any suggestions on how to get it "unstuck"? > > > Igor > >