Sigma 18mm F3.5
Launched February 1992

18mm f3.5

Sigma, ever at the forefront of lens technology and innovation, are pushing out the boundaries even further. Not too many years ago anything wider than a 28mm lens was considered to be in grave danger of producing distortion, fall-off and colour fringing. Several years ago Sigma made a conscious effort to promote their beautifully corrected 24mm lens as a viable alternative and this became the standard wide angle lens.
Today, with the advancement of Aspherical lens technology Sigma have managed to produce a light, compact 18mm f3.5 ultra wide angle lens which enables the photographer to get a completely different view of the world.

The Sigma 18mm lens has a huge angle of view (100°) which can open up all kinds of possibilities for producing dramatic images.

Sigma’s lens design produces excellent optical results with sharp, well-corrected images. Flare and vignetting are taken care of by Sigma’s multi-coating and bayonet fitting lens hood (supplied free with the lens).
To ensure that this focal length really holds no fears for the photographer Sigma have, for a limited period, slashed an amazing £150 from the retail price of the autofocus version!

Construction 10 Elements in 9 Groups
Focal Length 18mm
Maximum Aperture ƒ3.5
Minimum Aperture ƒ22
Field of View 100°
Minimum Focus Distance 25cm
Number of blades 6
Maximum Magnification 1:8.52
Zooming System N/A
Filter Size 72mm
Diameter 78mm (max.)
Length 59.1mm
Weight 355g
SRP at launch: £369.95
Available Mounts: Canon, Sigma, Minolta, Nikon AF