Announced
Feb 24, 2021
Description
The HD Pentax-FA 31mm F1.8 Limited is a full-frame prime lens. This lens has a 31mm focal length which gives a slightly larger field of view to the more conventional 35mm lenses. Mounted to an APS-C body this lens will give a 47.5mm equivalent focal length. This lens includes an aperture ring.
The optics inherits that of the smc PENTAX-FA 31mm F1.8AL Limited, and incorporates high-grade optical components, such as glass-molded, aspherical elements and high-refraction, low-dispersion glass elements.
Lens Type
Prime
Lens Mount
Pentax K
Format
35mm Full Frame / KAF
Year Released
2021
Focal Length
31 mm
Image Stabilisation
No
Max Aperture
F1.8
Max Aperture (F)
1.8
Min Aperture (F)
22
Aperture Ring
Yes
No. Diaphragm Blades
9
Elements
9
Groups
7
Special Elements
aspherical elements and high-refraction, low-dispersion glass elements
Min Focal Length
31 mm
Max Focal Length
31 mm
Min Focus
0.30m
Max Magnification
0.16x
Motor Type
Screw Drive
Focus Method
Internal
Auto Focus
Yes
Distance Scale
Yes
DOF Scale
Yes
Environmentally Sealed
No
Weight
341 g
Diameter
65 mm
Length
69 mm
Filter Thread
58 mm
Colour
Black, Silver
New to CameraSpecs?