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|
|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"|
|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).