Alan Chan wrote:
> ....But to be fair, I have never used their EX or APO lenses.
I have never used any of their older lenses... but I have 4 Sigma EX lenses and
all are superb, in terms of both build quality and optically. All work
perfectly with my Superprogram and MZ-S. The 4 EX lenses I have are the 20 mm
f1.8; 28-70 f2.8; 100-300 f4 and the 105 f2.8 macro.
I also have one of their consumer grade 70-200 UC ll lenses that for the price
is quite good. It has a variable f4-5.6 aperture but works fine mechanically
with my Pentax camera's and I have some 8" X 12" enlargements taken with this
lens that get a lot of complements.
Cheers, Mike.
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