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09-17-2011, 02:42 AM   #1
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Pentax DA* 50-135mm Issue

Hey guys/gals

Just had my brand spanking 50-135 delivered. Took several pics ... turned out nice . was shocked at how quiet auto focus [sdm] worked.

Today while shooting a soccer match for a friend I believe i may have come accross the dreaded SDM failure. As i was shooting, the lens all of a sudden would not focus or move but instead i could hear a quite distinct click everytime i half pressed the shutter button :S. Missed a goal score because of this and after moving the lens back and forth in Manual Focus for a few shots i tried again and Auto Focus worked again... Weird ! Seems the lens is only 3 days old should i contach BH Photo Video and inform them of the error or just let it ride for a few days and test to see if it will happen again??

Any information regarding the issue would be greatly appreciated


09-17-2011, 05:43 AM   #2
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Never has happened with my 50-135. You may want to just return it. Hope you have extended warranty on this lens. Because of reports of sdm failure I just went ahead and added a 7 year warranty to my purchase. Not had to make use of it. But...
09-17-2011, 07:25 AM   #3
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Could be contacts on lens and body need cleaning? Using MF may have been enough to move the lens and make a better electrical contact?
09-17-2011, 11:37 AM   #4
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I would clean all the contacts with DeoxIT. If that didn't work, return it asap w/o 2nd thought.

09-17-2011, 11:29 PM   #5
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Have cleaned contacts with bud and solution hasn't played up again as of yet but i have a extended warranty so hopefully i am covered. At this point if it happens again ill just send it back, Ive heard BH are pretty good dealers
09-23-2011, 02:19 AM   #6
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update on my situation
I continued to have intermittent focusing issues where it will not lock focus, have tried on a k7 and k5 results were the same.. Requesting a new one from BH
will tell how it goes
09-23-2011, 05:22 AM - 1 Like   #7
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I am picking my 50-135mm today.. And i so hope it will be ok..
I dont want to make similar movie to this.
09-26-2011, 02:30 AM   #8
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That my friend is the funniest vid i have seen in ages! laughed the whole way through. I have a feeling a lot of my Canon/Nikon friends would love to see it haha

thank you

Bh accepted the return and are giving me a new one as i love the images taken with my 50-135 beautifullllll

hopefully new one will make Hitler convert back to Pentax :P

09-27-2011, 03:10 PM   #9
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someone should perhaps send it to Pentax and Ricoh management instead?
09-27-2011, 05:13 PM   #10
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That cracked me up, watching it was like reading through Pentax-Forums. Thank you for the laugh.

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