N°434505 · Family detail
PentaxTelephoto·PENTAX K mount·2008
Smc Pentax-DA* 300mm F/4 ED SDM
Specifications01
MountPENTAX K
Focal length300mm
Max aperturef/4
TypeTelephoto · Prime
Release year2008
Weight1070 g
Filter size77 mm
Min focus distance1.4 m
Max magnification0.2398
Aperture blades9
Optical elements8
Groups6
AutofocusYes
StabilizationNo
Aperture controlNone
The aperture is controlled from the camera
Lens hoodPH-RBK77 - Bayonet-type round
With filter access window
TeleconvertersHD Pentax-DA 1.4X AF Rear Converter AW→ 420mm F/5.6
EraDigital era
Additional Info02
Lens TypeSuper telephoto prime lens
Summary02
Pentax K-mount telephoto prime lens with a 300mm f/4 maximum aperture. Designed for distant subjects such as sports, wildlife, and outdoor low-light use; includes SDM autofocus with IF focusing.
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.