- Lens construction: 7 elements in 6 groups.
- Fluorite and Ultra-low Dispersion-glass; internal focusing; full-time manual focus.
- Closest Focusing Distance: 3.5m / 11.5 ft.
- Focal Length & Maximum Aperture: 400mm 1:5.6
- Filter size: 77mm
This high-performance lens was designed with portability and handling ease in mind. One Super UD-glass element, whose characteristics are similar to fluorite, and one UD-glass element result in sharp pictures from corner-to-corner. The lens also has a built-in hood and a detachable tripod mount.