Pentax 6x7 - SMC Takumar 90 mm f;2.8 Leaf Shutter Lens; Leaf Shutter Operation Modes

. SMC TAKUMAR 90mm f/2.8 ___________ _
LEAF SHUTTER LENS
The SMC Takumar 90mm lens is a
multi-functional lens
with a built-in leaf shutter.
It also features its own shutter speed settings
from 1/ 30 to 1/ 500 sec., which are extremely
convenient
for overcoming the flash synch
problems inherent in the focal plane shutter.
In addition,
it produces easy and efficient
multiple exposures and includes a built-in
X-flash terminal along
with a cable release
contact. Basic applications are as follows :
(for detailed operating instructions, refer
to
the instructions accompaning the lens).
20
1. Used as is without cocking the lens shutter,
it functions as a normal standard lens with
fully automatic diaphragm action.
2. Use with the lens shutter cocked and the
lens' U-S lever set to "u" it provides fill - in
flash at speeds from 1 / 30 to 1 / 500 sec. (the
minimum speed
for fill-in flash is 1 / 30 sec).
In this instance, set the camera's shutter speed
dial
to 1 /8 sec. or slower. Then, hook an
electronic flash to the lens' X-synch terminal.
When you trip the shutter your exposure will be
made with the leaf shutter in the lens.