Smc Pentax-FA* 300mm F/2.8 ED [IF]

Specifications01

MountPENTAX K

Focal length300mm

Max aperturef/2.8

TypeTelephoto · Prime

Release year1993

Weight2495 g

Filter size112 mm

Min focus distance2 m

Max magnification0.1701

Aperture blades8

Optical elements10

Groups7

AutofocusYes

StabilizationNo

Aperture controlAperture ring (Manual settings + Auto Exposure setting)

Lens hoodMH-RA112 - Screw-type round

TeleconvertersPentax Rear Converter-A 1.4X-L→ 420mm F/3.9 Pentax Rear Converter-A 1.4X-S→ 420mm F/3.9 Pentax Rear Converter-A 2X-L→ 600mm F/5.6 Pentax Rear Converter-A 2X-S→ 600mm F/5.6

EraFilm era

Production statusDiscontinued

Additional Info02

Lens TypeSuper telephoto prime lens

Summary02

Pentax K-mount 300mm telephoto prime lens with a fixed f/2.8 maximum aperture, designed for subjects at long distance such as sports and wildlife. Includes ED glass and an IF focusing system.

AI-assisted summary — verify against linked sources

Specifications from thelensdb

Where 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.

Sources03

thelensdb.comVisit ↗

lens-db.comVisit ↗

Other Mounts03

No alternate mounts are indexed for this family yet.