Pentax DA* 16-50 with SDM failure


Fatdaz

Link Posted 04/11/2018 - 21:57
After upgrading to the K1 (mk1) I have not used my 16-50 for a little over 12 months. However went to use it yesterday on my K3ii, and it has fallen foul of the SDM gremlin. As I do not have a Pentax older than my K3ii, in order for me to convert to screwdrive, and to be honest I haven't really used this lens for 12 months I think it is time for it to find a new home. I did toy with the idea of having it repaired but the Boss lady has told me to off load not only this lens but some others too that I don't really use.

Optically the lens is flawless, there is no gritty feel in the focus ring, and it has always been covered with a 77mm Kenko Pro UV filter.

I am unsure really of a specific price for this lens in it's current condition, but apart from the SDM there's nothing wrong, it has both caps, lens hood and soft pouch, along with the box. I think that fair price would be around the 200.00 area based on google research, (Although I am open to sensible offers )

Preferably post in the UK, but will ship to the EU, however, please contact me to discuss postage for this , as with most sellers, I will accept PayPal (gift) but a bank transfer would be better or cash on collection. I am located in Birmingham, UK about 5 minutes from Birmingham Airport.






http://www.pentaxphotogallery.com/artists/slimdaz http://www.flickr.com/photos/slimdaz/
http://500px.com/darrensmith1
Last Edited by Fatdaz on 04/11/2018 - 22:02

bforbes

Link Posted 04/11/2018 - 22:13
Before you say they SDM is dead, have you tried "waking up" the SDM by connecting it to the camera and manually moving the focus ring back and forth?
Barrie
Too Old To Die Young

http://www.pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/

Kim C

Link Posted 04/11/2018 - 22:30
bforbes wrote:
Before you say they SDM is dead, have you tried "waking up" the SDM by connecting it to the camera and manually moving the focus ring back and forth?

A better way to try and wake it up is by operating the screwdrive mech.

bforbes

Link Posted 04/11/2018 - 22:31
Kim C wrote:
bforbes wrote:
Before you say they SDM is dead, have you tried "waking up" the SDM by connecting it to the camera and manually moving the focus ring back and forth?

A better way to try and wake it up is by operating the screwdrive mech.

how's that?
Barrie
Too Old To Die Young

http://www.pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/

Fatdaz

Link Posted 04/11/2018 - 22:38
bforbes wrote:
Before you say they SDM is dead, have you tried "waking up" the SDM by connecting it to the camera and manually moving the focus ring back and forth?

Hi Barry,

Yes tried that on my K3ii body, alas to no avail. Even removed battery, re-inserted with lens attached etc switched it on and off, typical IT helpdesk question, but nowt.

Manual is a dream though 😉

All the best

Darren
http://www.pentaxphotogallery.com/artists/slimdaz http://www.flickr.com/photos/slimdaz/
http://500px.com/darrensmith1
Last Edited by Fatdaz on 04/11/2018 - 22:39

Kim C

Link Posted 04/11/2018 - 22:39
bforbes wrote:
Kim C wrote:
Quote:
Before you say they SDM is dead, have you tried "waking up" the SDM by connecting it to the camera and manually moving the focus ring back and forth?

A better way to try and wake it up is by operating the screwdrive mech.

how's that?

When the first one failed, I found I could wake it up by using it a few times on the istD. When the second motor failed and I didn't have the D available, by using a jewellers screwdriver to turn the drive on the back of the lens. Only works for a short while before it fails completely which does seem to happen more often when the lens hasn't been used for a while. Decided not to pay around 100 for another motor the second time (even the so called "improved" motors) and have now done the screwdrive mode. I actually find it better using the screwdrive on the K3.

bforbes

Link Posted 04/11/2018 - 22:40
Kim C wrote:
bforbes wrote:
Quote:
bforbes wrote:
Before you say they SDM is dead, have you tried "waking up" the SDM by connecting it to the camera and manually moving the focus ring back and forth?

A better way to try and wake it up is by operating the screwdrive mech.

how's that?

When the first one failed, I found I could wake it up by using it a few times on the istD. When the second motor failed and I didn't have the D available, by using a jewellers screwdriver to turn the drive on the back of the lens. Only works for a short while before it fails completely which does seem to happen more often when the lens hasn't been used for a while. Decided not to pay around 100 for another motor the second time (even the so called "improved" motors) and have now done the screwdrive mode. I actually find it better using the screwdrive on the K3.

thanks
Barrie
Too Old To Die Young

http://www.pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/

bforbes

Link Posted 04/11/2018 - 22:58
Fatdaz wrote:
bforbes wrote:
Before you say they SDM is dead, have you tried "waking up" the SDM by connecting it to the camera and manually moving the focus ring back and forth?

Hi Barry,

Yes tried that on my K3ii body, alas to no avail. Even removed battery, re-inserted with lens attached etc switched it on and off, typical IT helpdesk question, but nowt.

Manual is a dream though 😉

All the best

Darren

Both my 17-70 and the50-135 both took a long while to re-awaken after a period of idleness
Barrie
Too Old To Die Young

http://www.pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/

Fatdaz

Link Posted 05/11/2018 - 07:31
bforbes wrote:
Fatdaz wrote:
Quote:
Before you say they SDM is dead, have you tried "waking up" the SDM by connecting it to the camera and manually moving the focus ring back and forth?

Hi Barry,

Yes tried that on my K3ii body, alas to no avail. Even removed battery, re-inserted with lens attached etc switched it on and off, typical IT helpdesk question, but nowt.

Manual is a dream though 😉

All the best

Darren

Both my 17-70 and the50-135 both took a long while to re-awaken after a period of idleness

I will give it another go before getting it converted 👍

Thanks Barry
http://www.pentaxphotogallery.com/artists/slimdaz http://www.flickr.com/photos/slimdaz/
http://500px.com/darrensmith1

Fatdaz

Link Posted 09/11/2018 - 20:17
DA* 16-50, now fully operational. Turns out if I switched it to live view the SDM woke up, Now works perfectly fine. Coupled to my K1 lens is a cracking piece of kit, but not being used so it's up for grabs.

Offers now at the asking price or above, ideally looking to get 250.00 if possible.
http://www.pentaxphotogallery.com/artists/slimdaz http://www.flickr.com/photos/slimdaz/
http://500px.com/darrensmith1
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