General Description

The SFX / SF1 was Pentax’s answer to the overwhelming success of the Minolta 7000 auto
focus SLR camera. Like the Minolta 7000 and unlike the much earlier PENTAX ME F, the auto focus motor is
integrated into the camera body. With the SFX / SF1, the new F series auto focus lenses are introduced.
The SFX / SF1 fully supports all older K-, M- and A-series lenses, and the F-series lenses can be used
on all K-mount bodies before and after the SFX / SF1.

The SFX / SF1 was the very first SLR camera offering a built-in flash. The hot-shoe for external flashes now sits on top of the large camera grip, so that internal and external flashes can be used simultaneously.

Product Variations
Exact Name SFX SF1
Color dark grey dark grey
Year of Introduction 1987 1987
Catalog Number unknown unknown
Sold with Case

Technical Specifications

Lens Mount KAF
Mount Limitations
AF System (sensitivity) SAFOX (2 ~ 18 EV)
AF with supersonic lenses
Power-Zoom Features
Self-Timer 12 sec
Mirror Lock-Up
Cable Release cable release F
Infra-Red Release
Additional Features
Width x Height x Depth 157 x 99 x 63.5 mm
Weight 665 g
Exposure System
Exposure Modes Av, M, P, Pdepth, Pspeed, Tv
Metering Modes with K and M Lenses center-weighted
Metering Modes with A and newer Lenses center-weighted
Meter Material GPD
Exposure Compensation (Step) +/-4 (1/2 EV steps)
Exposure Lock yes
Meter Range 1 ~ 20 EV
Manual ISO Range 6 ~ 6400 ASA
Film DX Range 25 ~ 5000 ASA
Construction electronic (vertical)
Material metal
Shutter Speeds 30 ~ 1/2000, B
Mechanical Speeds
Magnification [Coverage] 0.81x [92%]
Aperture Indication
Shutter-Speed Indication LED
Interchangeable Screens
Power Source
Batteries 1 x 6 Volt 2CR5
External AA Battery Grip SF (uses 4 AA-size batteries)
Continuous Shooting
Continuous Shooting 1.8 frames per second
Flash System
Command Protocol(s) analog
Features TTL, P, S
Synchronization Speed(s) 1/100 ~ 30, B
Built-In Flash
Guide Number (GN) 14
Coverage (35mm equivalent) 35
Auto Pop-Up
Red-Eye Reduction
AF Assist yes
Fitting Case(s) unknown