-----Original Message-----
From: Alan Chan [mailto:[EMAIL PROTECTED]]
Sent: September 9, 2002 10:25 PM
To: [EMAIL PROTECTED]
Subject: Re: Pentax FA / Tamron vs Sigma 28-200's
With Sigma, one cannot judge their built quality by how they felt, but need
to actually use them for a period of time to know if they were good. I had 4
Sigma manual focus lenses, and 1 of them were junk mechanically. 1 with
self-destructed rubber, aperture ring and gold plated contacts. The other 2
were fine, except all with poorly design aperture mechanisms (noticeable
only to those who repair lenses).
I have 4 Sigma EX series lenses and used to own a UC series which I sold. I
am very pleased with both the mechanical and optical quality of the EX
series. In fact the 20 mm 1.8 is the sharpest lens I have ever owned. The
70-210 UC served it's purpose, certainly it was not on a par with the EX
series, but as a compact "consumer grade" lens, it was a good value and
mechanically fine in two years of use.
Cheers, Mike.
