Technical data

R~YOIVB wt
button is p
tile the
ressed.
lock.attached cable release.
* The "X" index is used for synchronizing
a
speedlight. Although the shutter speed at
" X"
is 1/60 sec.. actually it is equivalent to a very
short exposure during the flash time of the
speediight.
Lens Aperture
The adjustment of the quantity of light and
depth.of-field are made by turning the pre.set
aperture ring to adjust the desired F stop to
the index.
* As the numerical value of the F stop gets
larger, the amount of light reaching the film
becomes correspondingly less. For each F stop
the light is reduced one-half. Accordingly, when
Pre-set - Inde*
Aperture-
Ring
the aperture is increased by one index point, the
exposure is doubled, and when
it is increased
by two index points the exposure is quadrupled.
* The aperture ring can also be set to inter.
mediate values.
* Depending on the lens, there are instances
where there
Is no relation to the lightness being
halved between the maximum diameter of the
aperture and the next aperture reading.
The ratio between aperture and the amount
of exposure, using
F2 as the basis, is as follows:
Lens Aperture
1.2 1.4 1.8 2 2.8 3.5 4 5.6 8 11 16 22
EXDOSUTB Ratio
3 2 1.25 1 112 113 114 118 1116 1132 1164 11128
13