The Sigma Corporation is pleased to announce the launch of the new Macro 70mm
F2.8 EX DG lens . This medium telephoto macro lens is ideal for both digital SLR
cameras and 35mm film SLR cameras. The 70mm focal length gives an equivalent
field of view as our 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 from infinity to 1:1 macro, 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. Sigmas super multi-layer lens coating
reduces flare and ghosting, and helps create a natural color 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. A screw-in lens hood is
included for convenient use of circular polarizing filters.