THe Topcon TRC-50x Retinal camera may be used for high-resolution fundus and flourescein photography. Three angle settings may be selected ted at 20, 35 , and 50 degrees. Through the use of diopter compensation lenses, this unit will accommodate patients from +23 to -23 diopters. Additionally a setting for anterior photography is supplied. This unit has a variable illumination diaphragm, which can be used to accommodate various maximum pupil sizes. Flash settings may be easily changed via selection of the proper flash intensity button.