N°8678535 · Family detail
PentaxTelephoto·PENTAX K mount·1997
Smc Pentax-FA* 400mm F/5.6 ED [IF]
Specifications01
MountPENTAX K
Focal length400mm
Max aperturef/5.6
TypeTelephoto · Prime
Release year1997
Weight1140 g
Filter size77 mm
Min focus distance2 m
Max magnification0.2299
Aperture blades8
Optical elements9
Groups8
AutofocusYes
StabilizationNo
Aperture controlAperture ring (Manual settings + Auto Exposure setting)
Lens hoodMH-RBB77 - Bayonet-type round
TeleconvertersPentax Rear Converter-A 1.4X-S→ 560mm F/7.8
Pentax Rear Converter-A 2X-S→ 800mm F/11.2
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeSuper telephoto prime lens
Summary02
Pentax K-mount 400mm telephoto prime lens with a maximum aperture of f/5.6. Designed for distant subjects such as sports, wildlife, and outdoor telephoto photography.
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.
![Smc Pentax-FA* 400mm F/5.6 ED [IF]](https://img.lens-database.com/lenses/variants/v1/4913c9824cf94c397d79245b939c2362f70314a19802ea212cf32e1d34a73148/a368321c14e2ef3dba368d9f9e173562aae3bbd7955f0b55fcf36e87eef8d6f3/1600x1071/1280.webp)
Other Mounts03
No alternate mounts are indexed for this family yet.