My local dealer stopped carrying Sigma lenses several years back due
to the number of returns he was getting from them. Highly variable
quality control and inconsistent compatibility were my experiences
with the brand when I tried them ... I gave up after trying four
different lenses with multiple returns on each.
I expect that if you get a good one that works with your camera, they
are good, but I hate the notion that I might get one lens in ten
worth keeping.
Godfrey
On Jul 9, 2005, at 2:26 AM, Thibouille wrote:
My usual retailer (who is a fine Pentax collector BTW) told he usually
tends not to sell Sigma lenses because of frequent incompatibilities
(dunno if it affects Pentax compatible lenses).
Sigma optics are usually compatible with bodies available at the time
the lens is out.
But older or newer bodies often have problems.
The reason (according to him) is that Sigma is NOT working under
licence from the original manufacturers. And they are the only ones.
Even Vivitar does. Tamron, Tokina etc. do too.
No licence means reverse engineering IMO so no wonder there are
problems.
I have no way to check this information and thought it could be of any
help to the community.
----------------------
Thibouille
----------------------
*ist-D,Z1,SFXn,SuperA,KX,MX, P30t and KR-10x ...
