smc Pentax DA 50mm f/1.8

When mounted on a PENTAX K-mount ILC camera body, the PENTAX-DA 50mm f/F1.8 lens delivers a focal length of 50mm or 76.5mm in the 35mm format. The lens f/1.8 maximum aperture and round diaphragm blades enable it to produce a natural “bokeh” (out-of-focus) effect, which gives the blurry elements in an image a softer, rounded and more pleasing appearance. Additionally, the f/1.8 aperture makes it possible to increase camera shutter speed when photographing in poorly lit conditions, which minimizes camera shake and helps eliminate blur.

Technical data
Format compatibility	Pentax crop frame DSLRs
Lens mount	Pentax KAF
Zoom / fix	Prime lens
Lens type	Normal
Special designs	Portrait lens
Focal length	50 mm
Focal length (35mm camera equivalent)	76.5 mm
Maximum aperture	f/1.8
Minimum aperture	f/22
Optical construction	6 elements in 5 groups
Focusing	Manual focus / Autofocus
AF motor	Screw drive
Full mechanical manual focus override	No
Image stabiliser	None
Minimum focus distance	45 cm
No. of diaphragm blades	7
Maximum reproduction ratio	0.15×
General
Diameter	63 mm
Length	38.5 mm
Weight	122 g
Filter thread	52 mm
Package contents	Lens / Front lens cap / Rear lens cap