N°414525 · Family detail
PentaxPrime·PENTAX K mount·1997
Smc Pentax-FA 43mm F/1.9 Limited
Specifications01
MountPENTAX K
Focal length43mm
Max aperturef/1.9
TypePrime
Release year1997
Weight155 g
Filter size49 mm
Physical length27 mm
Min focus distance0.45 m
Max magnification0.125
Aperture blades8
Optical elements7
Groups6
Min aperturef/22
AutofocusYes
StabilizationNo
Aperture controlAperture ring (Manual settings + Auto Exposure setting)
Lens hoodMH-RA49 - Screw-type round
TeleconvertersHD Pentax-DA 1.4X AF Rear Converter AW→ 60.2mm F/2.7
Pentax Rear Converter-A 1.4X-S→ 60.2mm F/2.7
Pentax Rear Converter-A 2X-S→ 86mm F/3.8
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeStandard prime lens
Summary02
SMC Pentax-FA 43mm F/1.9 Limited is a Pentax K-mount standard prime for low-light and general photography, offering a wide f/1.9 aperture. The “Limited” series is designed for a compact, lightweight build.
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.