N°92776 · Family detail
PentaxPortrait·PENTAX K mount·2021
HD Pentax-FA 77mm F/1.8 Limited
Specifications01
MountPENTAX K
Focal length77mm
Max aperturef/1.8
TypePortrait · Prime
Release year2021
Weight270 g
Filter size49 mm
Physical length48 mm
Min focus distance0.7 m
Max magnification0.1401
Aperture blades9
Optical elements7
Groups6
AutofocusYes
StabilizationNo
Aperture controlAperture ring (Manual settings + Auto Exposure setting)
Lens hoodBuilt-in telescopic round
TeleconvertersHD Pentax-DA 1.4X AF Rear Converter AW→ 107.8mm F/2.5
EraDigital era
Additional Info02
Lens TypeShort telephoto prime lens
Summary02
Pentax K-mount prime lens with 77mm focal length and maximum aperture f/1.8, designed for general-purpose photography such as portraits and low-light use.
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.