This wide-angle lens has an extra large image circle of 83ø in order to permit lens displacement for control of perspective.
Displacement of 10mm is possible with slight thumb pressure. And the lens rotates 90ø in 15ø steps for control in all directions.
S p e c i f i c a t i o n s:
Lens Composition: 9 elements, 9 groups Correction of abberation at close range with floating elements
Angular Field: 63 degrees (83 degree image circle)
Minimum Focus: 0.3m (1 ft)
Diaphragm action: preset
F-stop scale: f2.8-4-5.6-8-11-16-22
Filter Size: 86mm screw-in type with 70/86 ring
Lens hood: use 70/86 ring
Weight: 740 grams (1.63 lbs)
Lens size: 70x85.5mm(2 -3/4x3-3/8 in)
Lens pouch: No 2
Lens cap: 70mm, slip-on type