N°91513 · Family detail
PentaxPortrait·PENTAX K mount·2018
HD Pentax-D FA* 50mm F/1.4 SDM AW
Specifications01
MountPENTAX K
Focal length50mm
Max aperturef/1.4
TypePortrait · Prime
Release year2018
Weight910 g
Filter size72 mm
Physical length106 mm
Min focus distance0.4 m
Max magnification0.1799
Aperture blades9
Optical elements15
Groups9
AutofocusYes
StabilizationNo
Aperture controlNone
The aperture is controlled from the camera
Lens hoodPH-RBB72 - Bayonet-type petal-shaped
With filter access window
TeleconvertersHD Pentax-DA 1.4X AF Rear Converter AW→ 70mm F/2
EraDigital era
Production statusIn production
Additional Info02
Lens TypeStandard prime lens
Summary02
Pentax K-mount 50mm prime lens with maximum aperture f/1.4 and SDM autofocus. Designed for general-purpose photography, including low-light and portrait use. Weather-sealed (AW).
AI-assisted summary — verify against linked sourcesWhere can this lens be adapted?
The Pentax K mount has a flange distance of 45.46 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work
- Pentax DA and FA J lenses have no aperture ring. Use an adapter with its own aperture control.
- Pentax DA lenses are made for APS-C.
- Sony EAdapter · 27.46 mm
- Canon RFAdapter · 25.46 mm
- Nikon ZAdapter · 29.46 mm
- Fujifilm XAdapter · 27.76 mm
- L-MountAdapter · 25.46 mm
- Micro Four ThirdsAdapter · 26.21 mm
- Fujifilm G (GFX)Adapter · 18.76 mm
- Canon EF-MAdapter · 27.46 mm
- Canon EFAdapter · 1.46 mm
A rear element that sticks out can hit the camera mirror.
No plain adapter reaches infinity focus on: Nikon F.
Other Mounts03
No alternate mounts are indexed for this family yet.