N°102972 · Family detail
PentaxPrime·PENTAX K mount·2012
Smc Pentax-DA 40mm F/2.8 XS
Specifications01
MountPENTAX K
Focal length40mm
Max aperturef/2.8
TypePrime
Release year2012
Weight52 g
Filter size27 mm
Min focus distance0.4 m
Max magnification0.1299
Aperture blades9
Optical elements5
Groups4
AutofocusYes
StabilizationNo
Aperture controlNone
The aperture is controlled from the camera
Lens hoodNot available
EraDigital era
Additional Info02
Lens TypeShort telephoto prime lens
Summary02
Pentax K-mount prime lens with a 40mm focal length and f/2.8 maximum aperture, intended for general photography (often considered a normal/standard perspective).
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.