Pentax DA 14mm f/2.8ED (IF) Operating Manual page 25

Lens DA 40mm f/2.8 Limited
40 mm
Focal length
61mm in 35mm format)
Usable camera
Elements in groups 5–4
Angle of view 39°
Aperture f/2.8–f/22
Mount type K
AF
Minimum focus
0.4m (1.31ft)
distance
Maximum
Approx. 0.13×
magnification
Filter size 49mm or 30.5mm
Lens hood MH-RB 49mm
63mm × 15mm
Max. Diameter
× Length (2.5in × 0.6in)
90N/3.15oz
Weight
(with hood 100N/3.5oz)
Soft case Dedicated case
(equivalent to
-series
-mount
23