Tamron 24-70 diaphragm problem

Started Mar 9, 2013 | Discussions
Jay Martin
Regular MemberPosts: 223Gear list
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Tamron 24-70 diaphragm problem
Mar 9, 2013

Just received my tamron 24-70 VC a couple days ago. Haven't had time yet to use it a lot but I did check the diaphragm. Looking at the blades through the lens the diaphragm doesn't seem to move at all between 2.8 and 3.5. Some decrease in size should be obvious, right? Is there a better way to test this? Any input would be appreciated.

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Sony SLT-A57
Carsten Pauer 2
Veteran MemberPosts: 3,385
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Re: Tamron 24-70 diaphragm problem
In reply to Jay Martin, Mar 9, 2013

Any input would be appreciated.

Tamron 24-70 f/2.8 - Safe to buy yet?

Regards: Carsten

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pipee
Forum MemberPosts: 81
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Re: Tamron 24-70 diaphragm problem
In reply to Carsten Pauer 2, Mar 10, 2013

What is the serial number of your lens? It has been happening since day 1 and I am surprised this has not been fixed yet.

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