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12-03-2013, 02:16 PM   #1
Pentaxian




Join Date: Jan 2011
Location: New York
Posts: 3,310
16-50 SDM concerns

I purchased a DA* 16-50 from B&H on Black Friday. I have reason to believe it was manufactured before Pentax/Ricoh made a significant engineering design fix to the SDM focusing motor. Please see https://www.pentaxforums.com/forums/10-pentax-slr-lens-discussion/244330-when...ufactured.html for more details.

I'm open to other suggestions from you, but I'll propose coming into the store for a swap with a more recently manufactured sample. Apparently the only way to identify the approximate age of a 16-50 is by the serial number , and maybe some "Ricoh" paperwork or a label on the box. Can you find your highest-numbered 16-50 serial number, reserve it for me, and let me know what the serial number is so I can research whether it's newly manufactured?

-John Speroni

12-09-2013, 05:45 PM   #2
Pentaxian




Join Date: Jan 2011
Location: New York
Posts: 3,310
Original Poster
B&H, please respond, even if only to say you are thinking about it. If you can't respond publicly a PM, email, or phone call would be appreciated.
12-15-2013, 08:54 AM   #3
B&H Photo Specialist
Chuck-B&H's Avatar

Join Date: May 2010
Location: New York
Posts: 867
Hello,

Firstly. I am terribly sorry for the delay in responding to your post, the E-mail alerts do not appear to be working correctly. According to what I've read: "all lenses produced in 2012 or later should no longer fail."

Read more at: Pentax Engineer on SDM Failure and Pentax DC - Photokina 2012 - PentaxForums.com

While I am unable to look up the manufacture date for your particular lens, I doubt very much we've had inventory sitting here since 2012, the lens just sell too quickly. Pentax could more than likely confirm whether or not you lens has the updated SDM focus motor. Of course, if you are not happy with your lens, you have our 30 day return period, please contact our Customer Service Dept to set up an RMA. cs@bhphoto.com

C h u c k C a p r i o l a
Live Chat and E-Mail Sales Manager B&H Photo-Video

Thank you, we appreciate your business.
*** Peace on Earth ***

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