Digital BW, The Print

I can't say much about all Sigma EX series lenses, but I can say 
this.  I have a Canon 70-200 f/4L lens which is a masterpiece of lens 
design (just can't afford the f/2.8L which is touted to be 
incredible).  I also use a Sigma 28-70 f/2.8 EX Aspherical.  I have 
done test shots with both lenses at 70mm using Kodak T400CN (which I 
like better than Porta) and can detect no difference between the 
lenses.  This is a qualitative judgment, for what it's worth.  I have 
heard that Sigma lenses are a mixed bag, so this may not mean much 
for the 70-200 EX.  I toyed with buying a 70-200 EX Sigma, but 
decided to save my pennies until I could afford the Canon L.

Kiefer Elliott
Vancouver, Canada

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Roger Sopher 
<rlsopher@c...>" <rlsopher@c...> wrote:
> I have been giving Kodak Portra chromogenic B&W film scanned with a 
> Nikon 4000ED a try but the images seem just a hair soft. Whether 
> this is the film or the lens I don't know (Canon 24-85mm) but I 
> suspect the lens. From previous experience I know the L glass is 
> superb but it is a hair beyond my means at the moment. I used 
Tokina 
> ATX in the past (bad mistake) and they had horrid flare problems. A 
> friend suggested the new Sigma EX series, particularly the 70-200. 
> Has anyone had any experience with this lens?
> 
> Thanks
> 
> Roger