The advent of digital SLR's requires optimum lens performance and therefore the very latest optical technology has been incorporated in the production of this medium telephoto macro lens. The 70mm focal length gives an equivalent field of view as Sigma’s popular 105mm macro lens when used on digital SLR cameras with an APS-C size image sensor. The design of this lens makes it suitable for taking pictures in all situations both with natural light conditions or flash.
A Special Low Dispersion (SLD) lens and two high refractive index SLD lenses provide excellent correction for all types of aberrations and produce an exceptional level of optical performance. Sigma’s super multi-layer lens coating reduces flare and ghosting, and helps create a natural colour balance.
The floating focus system provides extremely high optical performance from infinity to 1:1 Macro. A ‘Focus Limiter Switch’ in incorporated on the lens, improving the speed and accuracy of autofocus by limiting the focus range from 25.7cm to 48cm and 55cm to infinity.
A magnification scale is displayed on the lens barrel, ensuring ease of use.
Maximum aperture: 2.8.
Minimum aperture: 22.
Lens Construction: 9 groups, 10 elements.
Blades in Diaphragm: 9.
Angle of View: 34.3 degrees.
Minimum Focusing Distance: 25.7cm.
Dimensions (Length x Diameter): 76mm x 95mm.
Filter size: 62mm.
What's in the box: Lens, Lens Hood, Fitted Padded Case, Front and Rear Caps, Instruction Manual, Warranty Card.