Technical data

Electronic Exposure Control The electronic exposure control of your CONTAX RTS is based on through-the-lens
light reading at full aperture. For light reading, an SPD (silicon photo diode) is used. This sensor responds to
variation of light intensity at a speed several thousand times faster than the CdS cell used m most SLRs and shows
high sensitivity in extremely low light levels. .
Light reading range
Your CONTAX RTS provides an extremely wide light reading range from EV -1 to 19 (F1.4 at ASA 100). EV
(exposure value) denotes the value of exposure through combination of the shutter speed and lens aperture; the
actual exposure to light of the film emulsion depends upon the speed rating of the film and the intensity of the
transmitted light. For instance, if correct exposure can be obtained at EV 10 with ASA 100 film, the shutter speed
must be adjusted one setting toward a slower speed or the lens aperture must be opened by one stop when using an
ASA 50 film; therefore, the exposure valueatASA50will beEV9ifthelight condition remains the same and, at ASA
20.0, it will be EV 11.
MANUAL OPERATION