The Kodak Hawkeye II Tethered Imaging Accessory was a prototype tethered digital camera developed in the late 1980s by the Eastman Kodak Company.
It is a variant of the Hawkeye II Integrated Imaging Accessory, and even used the Nikon F3 as a base. The integrated camera concept proved rather impractical, so Kodak returned to the earlier tethered approach with this model of the Hawkeye II, which used a shoulder pack that contained the electronics, the Tethered Electronics Module.
It had a backplane that would accept a variety of circuit cards, meaning that special features could be added to it with ease. The battery and charger were in modules that clip onto the end of the shoulder pack.
The Tethered Imaging Accessory features a motor drive unit with a grip, red and green status LEDs at the rear, a soft rubber finger grip, a DB-15 connector to the Tethered Electronics Module that contains a proprietary parallel digital pixel data interface, a 20-pin header connector, and a round post with pointed contacts, or "pogo pins", for connecting with the Nikon F3's motor drive circuits. The housing was milled from a solid block of aluminum. The motor drive's interface provided a reliable control and sensing of the shutter operation.
The motor drive unit's power supply board converts 12 volt battery power to the voltages needed for the CCD analog circuits. Another board holds the digital control EPLD that generates the CCD clocks, as well as the 8-bit A/D converter. The belt drive winder mechanism features a slip clutch, due to the F3 abruptly stopping the rotation at the end of each wind.
The back is almost the same as the one used by the Integrated Imaging Accessory model, but the A/D converter is now in the adapter itself.
Notably, the camera was used by NASA for space shuttle mission STS-44 in 1991, where it was used to capture images of things on Earth through the shuttle windows. In a highlights video of STS-44, astronaut Mario Runco explains the use of the camera, though his saying that the DB-15 connector is an RS-232 type connector is a misnomer.
The electronic architecture of the Hawkeye II Tethered Imaging Accessory would go on to be repackaged in the DCS 100.