Sigma has today announced a new AF 20-40mm F2.8 EX DG lens. Again this lens appears to be aimed at owners of digital SLR's because it offers a relatively useable bottom end (wide end) to a normal mid point in a compact lens construction. For example, this lens on a Canon EOS-D30 would provide an equiv. range of 32-64 mm, on a Nikon D1x it provide an equiv. range of 30-60 mm. The lens has access at the back for filters.

The lens should be on the market (at least in Japan) with Sigma AF, Nikon AF and Canon AF on September 1st 2001 and soon after for Minolta AF and Pentax AF. Expected price is 99,000 YEN (US$820).

Sigma AF 20-40mm F2.8 EX DG specifications

Focal length range (35 mm) 20 - 40 mm
- on a Canon EOS-D30 32 - 64 mm (equiv.*)
- on a Nikon D1/D1x/D1H 30 - 60 mm (equiv.*)
- on a Kodak DCS 760 26 - 52 mm (equiv*)
Filter size 82 mm
Maximum aperture F2.8
Minimum focus distance 30 cm
Lens composition 17 pieces in 13 groups
Lens type EX DG Aspherical
Auto / Manual Focus "One Touch dual focus system"
Lens hood Fixed
Filter Rear of the lens
Weight 595 g (1.3 lb)
Dimensions 89 x 108 mm (3.5 x 4.3 in)
Availability Expected September 1st - Japan
Price (approx.) 99,000 YEN (US$820)
Included Case, 'Star hood'

* Actually it's a bit more complicated than just multiplying the focal length, what you actually get is a crop of the field of view (or picture angle).