About Sigma 24-135mm f/2.8-4.5 IF Autofocus Lens for Canon SLR Cameras:
This Sigma 24-135mm F2.8-4.5 IF Autofocus lens has a wide-angle view of more than 80° at 24mm to standard 135mm. The Special Low Dispersion (SLD) glass element and 2 aspherical lenses optimize the optical performance, and at 24mm focal length, this lens has a fast F2.8 maximum aperture. Features include a super wide-angle range of view from 84.1° to 18.2°, and incorporates an internal focusing system which eliminates front lens rotation, allowing use of polarizing filters and Petal-type hoods. The optical materials used in this new lens are lead- and arsenic-free ecological glass. For use w
Features Sigma 24-135mm f/2.8-4.5 IF Autofocus Lens for Canon SLR Cameras:
- Lens features one Special Low Dispersion ( SLD ) glass element, and two Aspherical elements, resulting in excellent correction of chromatic aberration
- Inner focusing system features non-rotating front lens barrel for simplified use of filters
- Custom designed hood with bayonet mount included to prevent extraneous light from degrading image quality
- All materials used in this lens are lead and arsenic free
- Filter Size – 77mm
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