Lighting instruments are the tools of our trade. Just as a mechanic must know what his tools are capable of, we must understand the capacity of our resources in order to use them to their potential. Here we will examine them classified in their major groups: tungsten fresnels, HMIs, carbon arcs, open-faced units, PARs, softs, broads, and miscellaneous.
With very few exceptions (such as the Dedo light), most lights that have a lens use the fresnel lens. Developed in the 19th century for lighthouses by Augustin-Jean Fresnel, the lens was further refined to address certain problems with large glass lenses, primarily the ...