N°98409 · Family detail
PentaxFisheye·PENTAX K mount·1995
Smc Pentax-F 17-28mm F/3.5-4.5 Fisheye
Specifications01
MountPENTAX K
Focal length17-28mm
Max aperturef/3.5
TypeFisheye · Wide · Zoom
Release year1995
Weight255 g
Min focus distance0.45 m
Max magnification0.0699
Aperture blades6
Optical elements9
Groups7
Min aperturef/4.5
AutofocusYes
StabilizationNo
Aperture controlAperture ring (Manual settings + Auto Exposure setting)
Lens hoodNot available
TeleconvertersPentax Rear Converter-A 1.4X-S→ 24-39mm F/4.9-6.3
Pentax Rear Converter-A 2X-S→ 34-56mm F/7-9
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeFisheye lens
Summary02
Pentax K-mount 17–28mm fisheye zoom lens with a variable maximum aperture of f/3.5–4.5, intended for wide-angle/fisheye creative effects on APS-C and reduced-angle full-frame use.
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.