The Opteka CXS-800 is a unique gearless follow focus which will allow any filmmaker to achive professinal results. The CXS-800 is constructed from high quality aluminum and ABS material and is designed to work with all DSLR cameras and prosumer camcorders. The follow focus is adjustable for virtually any lens and has a unique gearless feature to minimalize bulk and add a sleek look. Includes a bonus speed crank.