EXPOSURE OPERATION
To obtain accurate exposure: first align the film-speed setting line (engraved on the Inner Dial) to coincide with
the small black dot engraved beneath the selected film speed rating (ASA or DIN). Next, point the camera lens
to the subject and ensure that fingers do not obscure the photo-electric window (mounted above the lens). Note
the position at which the needle comes to rest. Now, rotate the knurled Outer (shutter speed) Dial until the small
'zero' index is bisected by the stationary meter-needle (located in the curved window). The meter is now primed
for any selection of coincident reading of aperture and shutter speed. Finally, align the red dot on the Hellos
lens with the selected aperture: point the camera at subject, rotate the focusing ring until sharp image-resolution
is obtained, turn the pre-set diaphragm ring clockwise to its fullest extent--depress the release button to obtain
perfect exposure.4www.bu tkus.org
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