Sigma 18-35mm F3.5-4.5 UC
Announced February 1994


Sigma Ultra Wide Angle Zoom 18-35mm F3.5-4.5

Sigma UItra Wide Angle Zoom 18-35mm F3.5-4.5 UC is world first wide angle zoom lens covering ultra wide angle of 18mm.

This new lens incorporating internal zooming as well as internal focusing.

With these new zooming and focusing system enables to keep constant length of the lens barrel and non-rotating front, which has a great advantage for the filter work and the sunshade. To minimize the distortion, this lens is using glass moulding aspherical element.

This new lens is of ultra compact design and weighs only 300 grams.

The product will be available in April 1994 with most AF and MF SLR cameras in the market today. Price to be announced at that time.

Construction 11 Elements in 10 Groups
Focal Length 18-35mm
Maximum Aperture ƒ22
Minimum Aperture ƒ3.5-4.5
Field of View 100.5-63.4°
Minimum Focus Distance 50cm
Number of blades 6
Maximum Magnification 1:12
Zooming System Rotary, Clockwise
Filter Size 82mm
Diameter 88mm (max.)
Length 71.5mm
Weight 300g
SRP at launch: NA
Available Mounts:

AF: Canon, Sigma, Minolta, Pentax, Nikon

MF: Nikon, Canon, Minolta, Pentax, Olympus, Ricoh, Contax, Yashica.