PS 110mm F/4.5 1:1

The lens provides 1:1 magnification without bellows or extension tubes. Though optimized for use at close distances, the PS 110 macro provides no distortion when used through infinity and therefore can be used in place of the PS 80 as the normal lens.
 
Lens Construction 8 groups/ 9 elements
Angle of View 39.8
F stop range f 4.5 - f32 (with 1/2 stop detents)
Diaphragm Fully Automatic
Minimum Focus Distance 0.37m/ 14.5 in
Shutter Seiko #0
Filter Size 72mm
Lens hood Bayonet-type (included)
Size 86mm x 107mm / 3.4 in x 4.2 in
Weight 940g / 33.6oz
35mm equivalent focal length ---