Focal Length: 4.5-5.6mm

Angle Of View: 122 - 84.1 degrees

Focus Adjustment: Hyper Sonic Motor AF and Full Time Manual Focusing

Focal Length: 7mm to 14mm (35mm camera equivalent 14mm to 28mm)

Angle Of View: 114° (W) ~ 75° (T)

Focus Adjustment: Contrast AF system support

Focal Length: 35.4 mm

Angle Of View: (diagonal, horizontal, vertical) Optical design Distance setting Aperture Bayonet Filter mount/Lens hood Dimension and weight For 35 mm (24 x 36 mm) : 63°, 54°, 38°, for LEICA M8 (18 x 27 mm) : 50°, 42°, 29°, corresponds to a focal length of approx. 47 mm

Focus Adjustment: Autofocus

Focal Length: 31mm

Angle Of View: 70 degrees

Focus Adjustment: One-touch AF

Focal Length: 21mm

Angle Of View: 68 degrees (when used with *istD series & K100D body)

Focus Adjustment: Quick-Shift Focus System toggles between AF and MF

Focal Length: 15mm (equiv 23mm)

Angle Of View: 86 degrees

Focus Adjustment: Quick Shift Focus from AF to MF

Focal Length: 14mm

Angle Of View: 90°

Focus Adjustment: Quick-Shift Focus System allows instant shift from AF to MF

Focal Length: 16-50mm

Angle Of View: 83 - 31.5 degrees (when used with PENTAX Digital SLR camera body)

Focus Adjustment: Quick-shift Focus System for instant switching from auto focus to manual

Focal Length: 17mm (35mm equivalent focal length 34mm)

Angle Of View: 65°

Focus Adjustment: Auto and Manual

Focal Length: APS: 30mm (35mm Equivalent: 20mm)

Angle Of View: 94 Degrees

Focus Adjustment: Autofocus, Rear Focusing