Flicker on film is a common problem caused by the rhythmic changing of the light level within the scene. This changing light level is the result of exceptionally small inaccuracies in the frequency of the AC power source or camera speed. The CINE-CHECK is an excellent tool for identifying inaccurate frequencies of the AC power, and allows the user to make necessary adjustments before filming. It only takes a few seconds to measure the frequency of the AC power with the CINE-CHECK. By setting the mode switch to the Hz position and pointing the optical sensor towards the area lit with HMI lights or fluorescent lights, the displayed reading is the frequency of the AC power source.

The CINE-CHECK is capable of measuring the speed of any motion picture camera. A constant light source, such as a flashlight or sunlight, must be directed into the lens or lens port of the camera. By switching the camera on, a light to dark transition is generated by the shutter on the ground glass. With the mode switch set to the fps position and the CINE-CHECK aimed into the eyepiece, the camera speed is quickly measured in frames per second, accurate to 0.01 fps. Unlike patterned LED-oriented speed checkers, the CINE-CHECK displays the camera speed measurements in easy-to-read numerals.