Despite its ultra-high speed, this new lens is extremely sharp and free of aberrations. It is an entirely new design, featuring six elements in five groups, and measures only 3 1/2 inches in length.
Construction: 6 elements in 5 groups
Angle of view: 18 degrees
Minimum Aperture: F/32
Closest Focusing Distance: 4ft 5in
Filter size: 72
Length: 3 1/2 in