SPECS
FOCAL LENGTH
1mm
APERTURE
f/8 (fixed)
MOUNT
Nikon F mount; adaptable to most others
FOCUS
Hyperfocal fixed; nominal focus distance 40"
FIELD OF VIEW
4 pi steradians (360° horizontal x 186° vertical)
PROJECTION
Annular radial
FORMAT
35mm Full Frame
IMAGE CIRCLE
18.3mm diameter (3.86mm central void)
ELEMENTS
11 refractive + 1 reflective
LENGTH
198mm
WIDTH
150mm
MASS
1.8kg
SEE ALSO: Sphere Technical Info (PDF)