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The RTS III was a much awaited solution for professional
photographers. It incorporated, for the first time a Real Time
Vacuum Back and ceramic pressure plate for the ultimate in film
flatness. For the first time the full capability of Carl Zeiss
lenses could be seen on film. Another first on the RTS III is
the Pre-Flash Spot Meter. It provides TTL flash meter readings
with any flash equipment. A five frame per second motor drive
is built-in, as is diopter control, Automatic Bracketing Control
and multiple exposure capability. Shutter speeds reach 1/8000
second with X sync at up to 1/250 second.
SPECIFICATIONS:
TYPE: 35mm focal-plane shutter auto/manual exposure SLR
PICTURE SIZE: 24 x 36mm.
LENS MOUNT: Contax/Yashica mount.
SHUTTER: Electronic quartz-controlled, vertical-travel, metal
focal-plane shutter.
SHUTTER SPEEDS: 32 seconds to 1/8000 sec. in auto mode; 4 seconds
to 1/8000 sec., B (bulb), X (1/125, 1/250sec.) in manual mode.
FLASH SYNCHRONIZATION: X-synch at 1/250 sec. (or slower) via
direct hot-shoe or X-synch terminal.
SHUTTER RELEASE: Electromagnetic w/exposure check function by
half depressing top release; additional side release (w/lock)
for vertical camera positioning, cable release socket, and dedicated
B (bulb) cable release socket.
SELF-TIMER: Quartz-controlled, electronic self-timer with either
10 or 2 sec. delay (selectable);
Cancelable during operation; Blinking LED together with film
counter indicates remaining(countdown)time.
EXPOSURE MODES: Aperture priority auto-exposure; Shutter speed
priority auto-exposure; Manual exposure; TTL auto flash; Pre-flash
TTL auto flash; Pre-flash TTL metering manual flash
METERING SYSTEM: TTL full-aperture, center-weighted average metering
/ TTL full-aperture spot metering (switch-able); Two SPD's (Silicon
Photo Diode) provided, one on the upper portion of the penta-prism
(center-weighted), and the other at the bottom of the mirror
box (spot)
METERING RANGE: EV0 to 21 for full-aperture, center-weighted
average metering, EV3 to 21 for spot metering (ISO 100, f/1.4
lens)
FILM SPEED RANGE: ISO 25 to 5000 in DX auto mode; ISO 6 to 6400
in manual mode
Exposure Check: Indication either by pushing the dedicated exposure
check button or depressing the release button half way (indication
remains visible for 16 seconds)
AE LOCK: Image plane exposure value is stored by operating the
main switch; Available in either center-weighted or spot metering
EXPOSURE COMPENSATION: +/-2EV (pre-settable in 1/3EV increments)
ABC Mechanism: 3-frame continuous compensation in the order of
standard, over-and under-exposure range switch-able, +0.5EV or
+1.0EV); (Automatic Bracketing Control) Usable in aperture priority
AE, shutter speed priority AE or manual exposure control
FLASH MODES: TLA direct shoe, and via synch terminal connection;
TTL direct flash control possible with TLA flash system; Pre-flash
TTL spot metering function built-in; Second shutter curtain synch
possible with Contax TLA 280 flash unit
VIEWFINDER: Fixed penta-prism, eye-level with long eye-point;
approx.100% field-of-view, 0.74x magnification with 50mm lens
focused at infinity; built-in eyepiece shutter
Dioptric Adjustment: Internally adjustable from +1D to -3D
FOCUSING SCREEN: Standard split image/micro-prism collar (interchangeable)
VIEWFINDER DISPLAY: Shutter speed, under-/over-exposure, film
counter, ABC display, pre-flash display, flash status indicator,
aperture, exposure mode, exposure compensation warning, light
metering mode
EXTERNAL LCD DISPLAY: Film counter, film transport indicator,
battery warning
FILM LOADING: Automatic motor advances film to frame "01"
once release button is pressed.
FILM ADVANCE: Automatic motor; When continuous shooting High
selected, approx. max 5 frames per second, Low mode, approx.
max. 3 fps
DRIVE MODE: Mode selector dial; Single, continuous Low or High,
2 or 10 sec. self timer, multiple exposure
Film Rewind: Automatic rewind/stop by operating lock release
button and rewind lever (film leader remains outside cassette)
MULTIPLE EXPOSURE: Possible by presetting the drive mode selector
(automatic reset, presetting required for each frame)
EXPOSURE COUNTER: Automatic resetting (additive type); Countdown
in rewinding; Exposure time displayed in "B" shooting;
Compensation status indicated when using ABC function
DEPTH-OF-FIELD PREVIEW: By pushbutton (effective in aperture
priority AE, manual exposure)
MIRROR-UP MECHANISM: Dedicated lever
CAMERA BODY CONSTRUCTION: Die-cast aluminum alloy for main body,
die-cast magnesium alloy for top cover, and titanium for bottom
cover
FILM PRESSURE PLATE: Ceramic; Vacuum mechanism combined
DATE IMPRINTING DEVICE: Data back provided as standard (imprinting
made in between frames); Imprinting of year/month/day, day/hour/mint,
no imprint, month/day/year, day/month/year (selectable); 3V lithium
battery used for date imprinting (CR2025)
POWER SOURCE: 1.5V AA-size batteries x 6 or one lithium battery
(2CR5).
BATTERY CHECK: Automatic voltage check (confirmed on the display
panel by turning on the main switch)
Dimensions & Weight: 156(W) x 121(H) x 66(D)mm (6-3/16 x
4-13/16 x 2/58 in.) 1,150g (2.53 lbs.) without batteries
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