Hardware knowledge:

Foto Cameras: Semipro and Pro Line from Canon, Sony, Nikon, Olympus
Film Cameras: Arri, Bolex
Video Cameras: Semipro and Pro-Models from Sony, Canon, JVC, Panasonic
Hybrid Cameras: Current Sony, Canon, Nikon and Panasonic lineup
Steadycam: Hollywood Pro Lite, various other models
Sound: Tape, Minidisk, HD-Recording, Mixer operation, Microphon-technics
Light: Studiolight photography, Filmlight, Stage-Light, basic Light-technics
Installation: Conception, Installation, cabling of multimedial installations