My 17-70 SDM Died :(

Started Nov 7, 2009 | Discussions
flash1100 Senior Member • Posts: 2,174
My 17-70 SDM Died :(

Used it yesterday no problem. Tried to use it today and all it did was grunt at me and refuse to focus. Going to the local CRK on Monday
--
Cheers

Gordon
Perth, Western Australia
K-7
http://www.flashpixx.net
http://www.pbase.com/gordonhaywood/

http://www.pentaxphotogallery.com/home#section=ARTIST&subSection=123519&subSubSection=0&language=EN

Joele Veteran Member • Posts: 4,633
Re: My 17-70 SDM Died :(

:-/

sorry to hear it, one good reason to buy local stock I guess...

I must admit I am a bit scared of SDM until it is more mature, especially if I was going to import the lens...

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*isteve Veteran Member • Posts: 9,509
Re: My 17-70 SDM Died :(

Have you tried turning the focus ring while using AF? Sometimes it unsticks the drive.

flash1100 wrote:

Used it yesterday no problem. Tried to use it today and all it did was grunt at me and refuse to focus. Going to the local CRK on Monday
--
Cheers

Gordon
Perth, Western Australia
K-7
http://www.flashpixx.net
http://www.pbase.com/gordonhaywood/

http://www.pentaxphotogallery.com/home#section=ARTIST&subSection=123519&subSubSection=0&language=EN

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Steve

Any fool can take a picture OF something. Its much harder to take a picture ABOUT something.

ddldave Regular Member • Posts: 119
Re: My 17-70 SDM Died :(

Have you tried wiping out the electronic contacts on the lens and the body first? It might be dirty and it might not be able to transmit data correctly that way.

007peter
007peter Forum Pro • Posts: 12,820
SDM problem strikes again, now a Believer of complains

I feel sorry for you. I hope it is under warranty and can be fixed. I'm a canonite interested in buying pentax dslr. Being spoiled by canon's USM, Pentax DA 17-70 SDM WAS my #1 CHOICE in zoom lens going with pentax. Now, I'm crossing DA 17-70 off and might go with either the cheapo Sigma 17-70 or the tamron 17-50

flash1100 wrote:

Used it yesterday no problem. Tried to use it today and all it did was grunt at me and refuse to focus. Going to the local CRK on Monday
--
Cheers

Gordon
Perth, Western Australia
K-7
http://www.flashpixx.net
http://www.pbase.com/gordonhaywood/

http://www.pentaxphotogallery.com/home#section=ARTIST&subSection=123519&subSubSection=0&language=EN

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Omega_Leader Regular Member • Posts: 475
Re: My 17-70 SDM Died :(

I think dirty contacts are the biggest problem with both SDM and the P-TTL flashes. I've had no end of problems with both.

I now carry a small bottle of glasses cleaner and a pile of small makeup remover pads (know idea what they are, I took them from the medicine cabinet).

I find if the contacts are dirty my external triggers slow down (max sync speed drops) and I think it is similar with the SDM contacts. I guess the very low voltages have trouble overcoming the resistance caused by the grime.

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Andr3w Regular Member • Posts: 427
Re: SDM problem strikes again, now a Believer of complains

007peter wrote:

I feel sorry for you. I hope it is under warranty and can be fixed. I'm a canonite interested in buying pentax dslr. Being spoiled by canon's USM, Pentax DA 17-70 SDM WAS my #1 CHOICE in zoom lens going with pentax. Now, I'm crossing DA 17-70 off and might go with either the cheapo Sigma 17-70 or the tamron 17-50

Just get an extended warranty through square trade when you buy it. They aren't that much

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*isteve Veteran Member • Posts: 9,509
Do you know how to google?

A simple search and....

http://forums.dpreview.com/forums/read.asp?forum=1030&message=30136241

This is one of many threads I came up with regarding SWM issues on Nikon. And for Canon, among many others was this....

http://photo.net/canon-eos-digital-camera-forum/00UfUI

And check out the comment here about EFS lenses

http://photo.net/canon-eos-digital-camera-forum/00GsRG

I have friends who shoot Nikon and Canon and they have their issues as well. As well as USM motors failing, IS failures on Canon lenses are very common around the 2-3 year mark and expensive to fix.

Now none of this proves anything in statistical terms other than the fact that no-one knows what the relative reliability rates are but that in-lens motors are weak points, potentially, in all lenses.

007peter wrote:

I feel sorry for you. I hope it is under warranty and can be fixed. I'm a canonite interested in buying pentax dslr. Being spoiled by canon's USM, Pentax DA 17-70 SDM WAS my #1 CHOICE in zoom lens going with pentax. Now, I'm crossing DA 17-70 off and might go with either the cheapo Sigma 17-70 or the tamron 17-50

flash1100 wrote:

Used it yesterday no problem. Tried to use it today and all it did was grunt at me and refuse to focus. Going to the local CRK on Monday
--
Cheers

Gordon
Perth, Western Australia
K-7
http://www.flashpixx.net
http://www.pbase.com/gordonhaywood/

http://www.pentaxphotogallery.com/home#section=ARTIST&subSection=123519&subSubSection=0&language=EN

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Steve

Any fool can take a picture OF something. Its much harder to take a picture ABOUT something.

jamesm007 Veteran Member • Posts: 5,663
Re: SDM problem strikes again, now a Believer of complains

cheapo Sigma 17-70

But don't feel that way if you do get it. The Tamron feels light next to it, its solid like a Sigma EX lens and the other lens don't feel big and heavy after spending time with the Sigma lens. Also its a very good walk around, you won't lose much, and for the things you do lose the Sigma gives back in other areas. Its pretty much a classic must have for the Pentax dSLR system, no other lens will be as reliable and give quite the overall IQ/versatility the Sigma 17-70mm f2.8/4.5 macro will.
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GuyM Senior Member • Posts: 1,167
Re: My 17-70 SDM Died :(

I hope CRK can fix it and give you an answer quickly. I'm guessing it's under warranty still. Let us know how it goes.

Guy

ozdean
ozdean Forum Pro • Posts: 26,311
Re: My 17-70 SDM Died :(

Sorry to hear Gordon, hope they fix it fast.
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Lance B Forum Pro • Posts: 32,905
Re: My 17-70 SDM Died :(

Sorry to hear of the failure of the DA17-70, Gordon. The DA17-70 was one of the SDM lenses that had a low failure rate according to the "polls".
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OP flash1100 Senior Member • Posts: 2,174
Re: My 17-70 SDM Died :(

Thanks everyone. It is a bit of a pain as it let me down at an important event. Fortunately today was the big day and I had the Tamron 28-75 as a back up for the podium shots. Could've done with the wider angle tho

Not sure if I want them to fix it or give me a new one. I have a good record with CRK so hopefully this will go smoothly too.
--
Cheers

Gordon
Perth, Western Australia
K-7
http://www.flashpixx.net
http://www.pbase.com/gordonhaywood/

http://www.pentaxphotogallery.com/home#section=ARTIST&subSection=123519&subSubSection=0&language=EN

GuyM Senior Member • Posts: 1,167
Re: My 17-70 SDM Died :(

Not sure if I want them to fix it or give me a new one. I have a good record with CRK so hopefully this will go smoothly too.
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Gordon, not telling you which way to jump in that regard but, personally, I would prefer something inspected and fixed and inspected again under warranty. Presuming of course it's done properly of course. Either way it will be fascinating to hear what CRK say about the failure.

Cheers,

Guy

OP flash1100 Senior Member • Posts: 2,174
Re: My 17-70 SDM Died :( ... has come back to life !!

Cleaned the contacts this evening and it is working again. Will watch it closely for any signs of unusual performance, but for now good as new again...
--
Cheers

Gordon
Perth, Western Australia
K-7
http://www.flashpixx.net
http://www.pbase.com/gordonhaywood/

http://www.pentaxphotogallery.com/home#section=ARTIST&subSection=123519&subSubSection=0&language=EN

GuyM Senior Member • Posts: 1,167
Re: My 17-70 SDM Died :( ... has come back to life !!

Well there you go (in this case at least). I had an issue with a newly purchased second hand FA lens some time ago. Communicated with the body most of the time, but not always. Blow me down if cleaning the contacts didn't rectify the situation. A simple bit of book-keeping I now maintain.

Guy

PentaxPoke Regular Member • Posts: 209
Re: My 17-70 SDM Died :( ... has come back to life !!

You will find that this is just one of several "solutions" that masks the real problem. The typical SDM failure is intermittent. cleaning the contacts, spinning the focus ring, etc. may appear to solve the problem, but it will most assuredly be back...

Roland Mabo Forum Pro • Posts: 12,462
Re: My 17-70 SDM Died :( ... has come back to life !!

So what is your solution then to dirty contacts that makes it trouble for the electronic data to pass through? Of course one needs to clean the contacts now and then, this also showing love to your equipment. Leaving things dirty and expecting error free operation well well...

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Lance B Forum Pro • Posts: 32,905
Re: My 17-70 SDM Died :( ... has come back to life !!

PentaxPoke wrote:

You will find that this is just one of several "solutions" that masks the real problem. The typical SDM failure is intermittent. cleaning the contacts, spinning the focus ring, etc. may appear to solve the problem, but it will most assuredly be back...

I'm not so sure that spinning the focus ring masks the real problem. When I first purchased my DA*16-50 2 years ago, after a month or so it stopped focusing. I turned the screw drive of the lens a number of turns and it hasn't missed a beat since and that is over 18months ago. I use this lens as my standard walk around lens and have shot a couple of weddings and so I use this lens extensively .

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dartagnon New Member • Posts: 7
Re: My 17-70 SDM Died :( ... has come back to life !!

I've just purchased a second hand DA 17-70 SDM in almost mint condition appearance wise. However when mounted on my K20D, AF doesn't seem to work. I am hoping that I too have the same dirty contact issue.

Any advice on what to use and how to clean the contacts? First of all, where are the lens contacts? is it the two flat contacts in the inner circle (compared to the ball-shape lens contacts?) If so, how do you clean the corresponding body contacts that is inside the mount circle?

If you could help me on what to use and how to clean the contacts that would be much appreciated !!

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