Smc Pentax-D FA 645 25mm F/4 AL [IF] SDM AW

Specifications01

MountPENTAX 645

Focal length25mm

Max aperturef/4

TypeWide · Prime

Release year2011

Weight1070 g

Physical length140 mm

Min focus distance0.4 m

Max magnification0.1099

Aperture blades9

Optical elements12

Groups8

Min aperturef/32

AutofocusYes

StabilizationNo

Aperture controlNone The aperture is controlled from the camera

Lens hoodBuilt-in petal-shaped

EraDigital era

Production statusDiscontinued

Additional Info02

Lens TypeUltra-wide angle prime lens

Summary02

Pentax 645 medium-format prime lens with a 25mm focal length and maximum aperture of f/4, intended for wide-angle photography on Pentax 645 cameras. Auto-focus (SDM) with an IF design and weather-sealed (AW) build.

AI-assisted summary — verify against linked sources

Specifications from thelensdb

Where can this lens be adapted?

The Pentax 645 mount has a flange distance of 70.87 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work

Pentax 645 DA lenses have no aperture ring. Use an adapter with its own aperture control.

Sony EAdapter · 52.87 mm
Canon RFAdapter · 50.87 mm
Nikon ZAdapter · 54.87 mm
Fujifilm XAdapter · 53.17 mm
L-MountAdapter · 50.87 mm
Micro Four ThirdsAdapter · 51.62 mm
Fujifilm G (GFX)Adapter · 44.17 mm
Canon EF-MAdapter · 52.87 mm
Canon EFAdapter · 26.87 mm
A rear element that sticks out can hit the camera mirror.
Nikon FAdapter · 24.37 mm
A rear element that sticks out can hit the camera mirror.

Sources03

thelensdb.comVisit ↗

dpreview.comVisit ↗

lens-db.comVisit ↗

Smc Pentax-D FA 645 25mm F/4 AL [IF] SDM AW

Other Mounts03

No alternate mounts are indexed for this family yet.