N°93265 · Family detail
PentaxTelephoto·PENTAX K mount·1995
Smc Pentax-F 100-300mm F/4.5-5.6
Specifications01
MountPENTAX K
Focal length100-300mm
Max aperturef/4.5
TypeTelephoto · Zoom
Release year1995
Weight605 g
Filter size58 mm
Min focus distance1.5 m
Max magnification0.25
Aperture blades9
Optical elements12
Groups8
Min aperturef/5.6
AutofocusYes
StabilizationNo
Aperture controlAperture ring (Manual settings + Auto Exposure setting)
Lens hoodRH-A58 - Screw-type round
TeleconvertersPentax Rear Converter-A 1.4X-S→ 140-420mm F/6.3-7.8
Pentax Rear Converter-A 2X-S→ 200-600mm F/9-11.2
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeTelephoto zoom lens
Summary02
Pentax K-mount zoom lens with a 100–300mm focal range and variable maximum aperture of f/4.5–5.6. Designed for general telephoto use such as portraits and distant subjects.
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.