Pentax KAF bayonet lens mount. (SMC-F), K- and KA- mount lenses are usable with loss of autofocus and certain metering functions. Very similar to SF1, simplified and updated, with no Servo AF mode, only one Program AE mode. SF10 Specifications: * Auto focus with manual override, AF lock. * AF Single shot and continuous shooting modes. * Focus assist beam for low light photography. * Metering modes: Manual, Program AE, Shutter and Aperture Priority AE, Program Auto Flash, and TTL Auto Flash AE. * Normal Program AE mode includes Auto Shift to Wide, Normal or Tele depending of focal length of lens in use. * Centerweighted metering pattern. * LED metering display. * Exposure compensation and AE lock. * Built-in auto flash, GN 12 (m), 35mm lens coverage. * Dedicated hot shoe, no PC sync terminal. * Shutter speed range: 30 sec – 1/2000 (in Auto modes). * Manually set shutter speed range: 1 sec – 1/2000 plus B. * High flash sync: 1/100 * Second curtain sync possible with AF400FTZ and AF240FT flash. * Self timer. * ISO/ASA film speed range: 25-5000 Auto DX setting only. * Motorized film advance (single or consecutive, up to 2 fps) and rewind. * Removable back. * Body grip. * Electronic cable release socket for use with opt Cable Switch F. * Top data panel (on prism housing) * Optional backs: Interval Data Back F, Data Back FB. * Dedicated flash for TTL AE: AF400FTZ, AF240FT, AF400T, AF280T, AF200T, AF080C. * Optional: Battery Grip SF1 (4-AA). * Other optional accessories include: Remote Battery Pack F/Terminal Grip F, Cable Switch F, IR Remote Release Cord F, and Hot Shoe Adapter F for off camera use with 5p Sync Cord. Uses 1 2CR5 battery