Spherical fisheye lens that easily captures a full 180° view
The Sigma 8mm f/3.5 EX DG is a spherical fisheye lens that easily captures a full 180° view in all directions, in a circular image. Even the most familiar and mundane of subjects can be portrayed with startlingly fresh new expressions through exaggerated perspectives and unusual distortion effects. Well suited for academic and technical measurements such as solid angle measurements, cloud cover measurements & virtual reality. Note!Full circle can only be captured with 35mm format digital SLR and film SLR cameras.
Filter Size Rear gelatin filter slot f/Stop Range 3.5-22 Minimum Focus Distance 5.3" (13.5 cm) Magnification 1:4.6 Angle of View 180° Groups/Elements 6/11 Length 2.7" (68mm) Maximum Diameter 2.9" (73m) Weight 14.1 oz (400 g) Item includes: Front & Rear Caps Padded Case Guide Plate (used as a pattern for gel filters).
Focal length (wide) 8
Focal length (tele) 0
Max aperture (wide) 3.5
Autofocus motor Yes
Lens mount Sigma AF
Special function Wideangle
Hood model Built-in
Minimum focus distance 13.5cm
Weight (g) 400
Size Diameter 73.5mm x Length 68.6mm
Colour Black
Minimum aperture f/22
Lens elements 11 Elements
Lens groups 6 Groups
Focus mechanism AF
MF switch Yes
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This Double DVD (180min) is a simplified easy to understand guide to the operation of the Meade ETX Telescopes. Unlike other instructional aids, this DVD is clearly laid out and goes into great detail for instance on the polar alignment setup for photography.
Great Price at only £16.99
Beginners Guide To Equatorial Mounted Telescopes. DVD Video
Learn how to use your equatorial mounted telescope in 45 minutes!
Great Price at only £14.99
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