N°102969 · Family detail
PentaxPrime·PENTAX K mount·2011
Smc Pentax-DA 40mm F/2.8 Limited Silver
Specifications01
MountPENTAX K
Focal length40mm
Max aperturef/2.8
TypePrime
Release year2011
Weight90 g
Filter size49 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 hoodMH-RC49 - Screw-type dome-shaped
EraDigital era
Production statusDiscontinued
Additional Info02
Lens TypeShort telephoto prime lens
Summary02
Pentax K-mount 40mm F/2.8 Limited prime lens. A standard focal length option intended for general photography, using a bright f/2.8 maximum aperture for low-light and subject separation.
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.