Meters and charts
Spectra - precision and light optical measuring instruments for film, video and photography. Available spotmetr and exposure. Spectra is one of the professional in the field of measuring instruments. 
Guild Kelly calculator - it is quick and easy calculator for all major cameraman calculations. Calculate for example depth of field, exposure compensation, different speed cameras, popular filters, ASA - DIN conversion, etc. 
Samcine MKIII calculator - calculator with many functions. With Samcine MKIII can calculate for example the depth of field, exposure compensation, the calculation of lighting, the speed of 16mm and 35 mm cameras, filters, shutter angles, field of vision for all formats, HMI flickering for 50 and 60 Hz. Image engineering
Color test table with high quality use. The tables offered in many designs for the control and measurement aperture, the characteristics of television and film cameras, the measurement of color reproduction, resolution HDTV camera test, and evaluation of halftone modulation depth electronic cameras, control of geometry and focal length and much more.
