Pentax SFX

The Pentax SF-X is a camera model from the Japanese Pentax brand that was manufactured by the Asahi Optical Co., Ltd. (called PENTAX Corporation since 2002). It is also known as the Pentax SF-1 in the United States, and was first produced in 1987. It was Pentax's second Autofocus 35mm SLR after the Pentax ME F. It was the world's first AF SLR with built-in auto flash.

The SF-X comes from the same family as the slightly newer Pentax SF7/SF10.

Features

 * Two auto-focus modes: single shot (focus priority) or continuous (servo)
 * Shutter speed range, from 30 seconds to 1/2000th sec and Bulb.
 * Exposure compensation
 * Auto bracketing
 * Interchangeable focusing screens
 * Built-in diopter adjustment
 * Motor drive transports at 1.8 frame/s
 * Built-in Retractable TTL-Auto Flash (RTF) with AF spot beam projector

Exclusive Accessories (from SF1 Camera Sales Brochure)
Substituted for the camera's back cover, this data back not only imprints the selected data on the film, but also controls the shutter release according to predesignated times and intervals. The mode/data adjustment is push button easy and the large LCD window displays the selected data It offers six recording modes: (1) Date (2) Time (3) A six-digit random number (4) One letter plus a two-digit count up number (5) One letter plus a two-digit count down number  (6) blank – or no imprint. For interval shooting, it offers five modes: (1) Shooting start time (2) Interval length (3) Number of exposures (4) Duration of Exposure and (5) Precharge signal of an external flash unit.
 * Interval Data Back F:

This data back imprints selected data clearly on the film from five recording modes: (1) Year/Month/Day (2) Month/Day/Year  (3) Day/Month/Year  (4) Day/Hour/Minute or   (AM-PM/Hour/Minute)  and (5) Off – no imprint. A simple push button control makes mode selection fast and easy, and the large LCD window displays the selected data.
 * Data Back F:

This accessory grip replaces the standard Lithium Battery Grip and holds four " AA " size batteries. N-Cd batteries not usable
 * "AA" Battery Grip SF1:

Attached to the SF1's hotshoe, this adapter allows you to position an accessory flash like the AF400FTZ away from the camera via the 5P Sync Cord. It also provides an easier access to  the shutter release button when using the AF080C Ring Light Set.
 * Hotshoe Adapter F:

Connected to the release socket of the camera body, this one-meter long switch lets you release the shutter without touching the shutter release button, especially useful in preventing camera shake and vibration during extended-time exposures using its lock mechanism.
 * Cable Switch F:

This cord connects a Pentax infrared receiver on the hotshoe to the release socket for remote shutter release using a Pentax infrared transmitter.
 * Infrared Remote Release Cord F: