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Problems with Sigma 1.4x tele converter

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by calvin1calvin on Sun Jul 05, 2009 8:04 pm

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I have a Sigma 1.4x tele converter that matches the new 150-500 Sigma lens. I use a Nikon D700 & D300 body. The teleconverter will not lock on the lens. Has anyone had a similar experience with this combination and what is the fix? I am afraid the teleconverter and lens will have to be sent to Sigma for repair. Both items are US warrantied and in their warranty period. The teleconverter locks on both camera bodies fine and the lens locks on both camera bodies. The problem appears to be the converter to lens mechanism. Any help is appreciated. Thanks

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by E.J. Peiker on Sun Jul 05, 2009 8:29 pm

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Sigma has changed the 1.4x converter three times that i am aware of in the last 15 years including not too long ago. Are you sure you have the latest one? I assume so since you say it is under warranty but did the seller sell you the latest one or clear old inventory? If it is the latest one, it sounds like it needs to be serviced.

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by avianaction on Mon Jul 06, 2009 5:40 am

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Hi Calvin

In the UK, Sigma provide a free 'chipping' service (lenses & TC) to make them compatiable with the latest cameras. Perhaps there is a similar situation in USA?

Cheers: Wayne

Wayne Richardson
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by E.J. Peiker on Mon Jul 06, 2009 6:21 am

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avianaction wrote:Hi Calvin

In the UK, Sigma provide a free 'chipping' service (lenses & TC) to make them compatiable with the latest cameras. Perhaps there is a similar situation in USA?

Cheers: Wayne

It does but his problem is that the thing won't mount properly to is lens

Either way, it probably has to go to Sigma.