The Sigma 8mm F4 EX DG Circular fisheye lens is unveiled today. A new coating technology on the Sigma 8mm fisheye lens reduces flare and ghosting. The Sigma 8mm F4 EX DG lens offers a 180 degree angle of view and can be used to create circular images. Price is £579.88 - availability to be announced.

Sigma Press Release

Digitally optimized circular fisheye auto-focus lens - 8mm F4 EX DG CIRCULAR FISHEYE

2005.10.07 - The Sigma Corporation is pleased to announce the launch of the new 8mm F4 EX DG CIRCULAR FISHEYE lens.

This circular fisheye lens is used to produce circular images, creating vast distortion with an angle of view of 180° when attached to a full-frame digital or 35mm film SLR camera. This auto focus lens is equipped with a new multi-layer coating technology that reduces both flare and ghosting and ensures accurate color balance and high image quality for both film and digital SLR cameras. This lens can be used for the scientific applications such as the solid angle measurements of cloud distribution over the sky, the vegetation distribution of the forest, etc., due to the quantifiable angle/area relationship it produces. Also supplied with the lens is a fitted padded case and a gelatin filter holder at the rear, allowing the use of gelatin filters.

8mm F4 EX DG CIRCULAR FISHEYE FEATURES

  * New multi-layer lens coating and lens design reduce flare and ghosting
  * High image quality for film and digital SLR cameras
  * Useful for academic/technical applications such as solid angle measurements
  * Equipped with a gelatin filter holder at the rear

THE SPECIFICATIONS

Focal Length :8mm
Minimum Aperture :F32
Lens Construction :10 Elements in 6 Groups
Angle of View :180 degree
Number of Diaphragm Blades :5pcs
Minimum Focusing Distance :20cm (7.8”)
Maximum Magnification :1:13.9
Filter Size :Rear (Gelatin filter)
Dimensions :Diameter 73.5mm (2.8in) x Length 63mm (2.4in)
Weight :320gr/11.2oz

* The appearance and specifications are subject to change without notice.