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The shutter is used to regulate the length of time the
light exposes the film plane. Ihe RIS ll Quartz
teatures an electronic circuit incorporating an ultra,
high precision quartz oscillator that provides precise
shutter speeds in both AUTO and manual exposure
modes.
S f r u t t e r C o n t r o l D i a l S e i t i n g s
'A" (AUTO) ... In the "A" mode, the camera will provide
correct exposures by automatically controlling the shutter
speeds over a wide range, covering 1/2000 to 16 seconds,
for the aperture setting, image brightness and film speed
in effect at the time. And when used with the Tl-A elec-
tronic flash system, it will provide TTL electronic flash
coupled to all aperture settings of the lens in use.
"2000"
"4" ...The figures in this range indicate the
shutter soeeds available in the Manual mode. Shown in
white, "2000" represents a shutter speed of 1/2000
second; likewise, the white figures "125", "2", and "1"
represent shutter speeds ol 11125, 112 and 1 second
respectively. The figures "2" and "4", shown in orange,
indicale shutter speeds of 2 and 4 seconds in that order.
When the shutter speed number is shifted to the next
larger number, it halves the amount of light falling on the
film (for example, when it is moved from 125 to 250)
conversely, the amount of light is doubled when the
shutter speed is changed to the next lower number.
"8" (8ulb) ...The shutter stays open as long as the
shutter release is pressed, causing the light to be
transmitted to the film.
" X " ( S y n c h r o C o n t a c t ) . . . T h i s s e t t i n g i s u s e d f o r t a k i n g
flash shots. The synchro contact on the RTS ll Quartz is
an X contact that operates at 'l160 second. However,
when using the TLA Flash Unit system, you can use the
"A" setting, there being no need to use the "X" setting.
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