Sigma 24-70mm F3.5-5.6 Aspherical HF
Launched February 2001

20012470HF

The SIGMA 24-70mm F2_S EX ASPHERICAL DF is one of several new products to be introduced at PMA 2001 by Sigma Corporation of Japan (2-3-15, Iwado-Minami, Komae-shi, Tokyo).

This lens covers focal lengths from 24mm super-wide angle to 70mm medium telephoto. It employs Helical Focusing system (HF) for focus adjustment, which allows straight movement of front lens elements. Thus, the front of the lens does not rotate, allowing the use of a “Perfect Hood” and the easy use of polarising filters. Minimum focusing distance from the film plane to subject at all focal lengths is 15.7″ (40cm). It incorporates aspherical lens to minimise distortion, sphetical aberration and astigmatism, resulting in high image contrast and resolution. The lens also features a depth of field scale that serves for determining the subject’s depth of field at a specific focal length and distance.

The lens materials used in this new lens are lead and arsenic free ecological glass.

LE_24-70mm HF
Specifications
Construction 9 Elements in 7 Groups
Focal Length (4/3 Equivalent) 24-70mm
Maximum Aperture ƒ3.5-5.6
Minimum Aperture ƒ22
Field of View 48.5°
Minimum Focus Distance 40cm
Number of blades 8
Maximum Magnification 1:2.7
Zooming System N/A
Filter Size 62mm
Diameter 69.5mm
Length 76.4mm
Weight 285g
SRP at launch: NA
Available Mounts: Sigma SA, Minolta, Nikon, Pentax, Canon