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DPChallenge Forums >> Hardware and Software >> Sigma 28-70 2.8 EX DG with SIGMA APO x2 converter?
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Showing posts 1 - 3 of 3, (reverse)
AuthorThread
 03/15/2006 09:42:21 AM · #1
Is this possible?

I don't know if this combination will cause damage to either lens?

any help would be appreciated.

cheers
Keith
 03/15/2006 10:53:52 AM · #2
Compatible lenses

Here is a list from the Sigma website of compatible lenses... the 28-70 2.8 is not on the list.

03/15/2006 11:58:35 AM · #3
Supposedly TCs are for 100mm plus lenses.
I tried my 2 tamron converters on my 18-50 2.8 and the 2.0TC worked, teh 1.4TC did not (err99 and it was hard to put on and off physically - odd i thought).
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