Sigma 135-400mm F4.5-5.6 DG
Launched November 2005
135-400mm F4.5-5.6 DG
Compact ultra-telephoto zoom lens, optimized for digital SLR cameras.
- The new multi layer lens coating and lens design reduce flare and ghosting.
- An aspherical lens and SLD glass elements provide correction for all types of aberration throughout the entire zoom range.
- The rear focus system ensures fast AF speed.
The Sigma Corporation is pleased to announce the launch of the new 135-400mm F4.5-5.6 DG lens. This compact ultra-telephoto zoom lens is optimised for digital SLR cameras. The new multi-layer lens coating and lens design reduce flare and ghosting, and creates an optimum colour balance and better picture quality through the entire zoom range. This lens uses one aspherical lens and three SLD (Special Low Dispersion) glass elements for excellent correction of various chromatic aberrations. It provides excellent image quality for digital and film SLR cameras.
The rear focus system ensures high performance stability and ease of use. Since the front of the lens does not rotate during focusing, a circular polarizing filter can be easily attached and used.
A removable tripod collar is included as a standard component.
| Specifications | |
| Construction | 13 Elements in 11 Groups |
| Focal Length | 135-400mm |
| Maximum Aperture | ƒ4.5-5.6 |
| Minimum Aperture | ƒ32 |
| Field of View | 18.2-6.2° |
| Minimum Focus Distance | 200-220cm |
| Number of blades | 9 |
| Maximum Magnification | 1:5.3 |
| Zooming System | N/A |
| Filter Size | 77mm |
| Diameter | 88.5mm |
| Length | 183.6mm |
| Weight | 1245g |
| SRP at launch: | £479.99 |
| Available Mounts: | Sigma AF, Canon AF, Nikon AF, Pentax, Minolta |