Contax Cameras UK Limited

35mm SLR - RTSIII - FAQ's

Q. The RTS III touts the vacuum back. Is there really any benefit? (You realize, of course, that by making an assetion that the RTS III is capable of making sharper prictures because of the vacuum system you are saying that no other camera is capable of making photographs with the same sharpness.)

A. The influence of the Real Time Vacuum (RTV) can be seen in photographic enlargements. A scientific paper was prepared by Dr. Sugaya, PhD., showing relative film flatness and its effect on sharpness. It was noted that motor drives cause more film bend than manual advance cameras and that the effect can be seen in enlargements, especailly when limited depth of field is available, such as in macro photographic applications. The influence of the Real Time Vacuum (RTV) can be seen in photographic enlargements. A scientific paper was prepared by Dr. Sugaya, PhD., showing relative film flatness and its effect on sharpness.

Q. My TLA280 on the RTS III gives two different readings, the after flash confirmation reads OK on the TTL system but the Pre-Flash Spot Meter always indicates under exposure by one to two stops.

A. The TTL Auto Flash Sensor has a considerably broader center-weighted average sensor area than the Pre-Flash Spot Meter which only measures a 5mm circle at the film plane.

 
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