Optical specifications
Lens construction : 8 elements in 7 groups
Angle of view : 47° (31.5° with *istD, *istDS body)
Minimum aperture : F32
Minimum focusing distance: 0.195m (Working distance: 0.047m)
Maximum magnification : Life size (1X)
Physical specifications
Lens mount :PENTAX KAF
Metering System : TTL open-aperture metering
Aperture control : Fully automatic
Number of aperture blades : 8
Filter diameter :49mm
Max Diameter & Max Length :67.5mm x 60mm
Weight (w/o hood) : 265g
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