Tektronix 3 - Page 5

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No. 3 Electric Shutter
SECTION 2
OPERATING
Mounting Lens Elements to Electric Shutter
Assembly’
NOTE
It is suggested that lens assemblies to be modified
to include an electric shutter be sent to Tektronix,
Inc. for installation of the electric shutter. The fol-
lowing procedures are provided for those customers
who wish to do the job themselves.
Ilex Lens Elements. The adapter rings must be installed
into the shutter assembly before installing the lens elements.
The deep ring (I1) must be screwed into the front side (the
side manufacturer's name and shutter description is on) of the
shutter assembly and the shallow ring (12) must be screwed
into the back side of the shutter assembly. Failure to install
the adapter rings properly may result in shutter damage.
The lens elements are now installed in the normal manner;
that is, the front lens element is screwed into the front side
(identification side) and the rear lens element is screwed into
the back side of the shutter assembly. The elements are
screwed into the shutter assembly as far as they will go and
are hand tightened.
Wollensak Lens Elements. The adapter rings must be in-
stalled into the shutter assembly before installing the lens
elements. The shallow ring (W1) must be screwed into the
front side (side manufacturer's name and shutter description
is on) of the shutter assembly and the deep ring (W2) must
be screwed into the back side of the shutter assembly. Failure
to install the adapter rings properly may result in shutter
damage.
The lens elements are now installed in the normal manner;
that is, the front lens element is screwed into the front side
(identification side) and the rear lens element is screwed
into the back side of the shutter assembly. The elements are
screwed into the shutter assembly as far as they will go and
are hand tightened.
NOTE
When installing the lens elements for a Wollen-
sak 88mm, f1.4, 1:1 ratio lens, the lens elements
must be reversed from normal; that is, the rear lens
element is screwed into the front side (identification
side) and front lens element is screwed into the
back side of the shutter assembly. The elements are
screwed in the shutter assembly as far as they will
go and are hand tightened.
The adapter rings are installed in the normal man-
ner for Wollensak lenses.
Mounting Electric Shutter Lens Assembly in
the Camera
Refer to the information in section 2 in the camera instruc-
tion manual under the title Changing Lenses.
mum lens aperture, object-to-image ratio, focal length and manu-
facturer.
®
INSTRUCTIONS
Polaroid Pack-film Back
Polaroid Roll-film Back
2a
~S
Fig. 2-1. Selecting proper mounting hole in mounting bracket for
Speedcomputer (Tektronix Part No. 122-0713-00).
Grasp the Speedcomputer so that the front panel is toward
you and the top of the Speedcomputer is down. With the
Speedcomputer in this position, remove the two bottom
screws. Lay the mounting bracket (see Fig. 2-1) on the Speed-
computer so the flat surface of the bracket is against the
Speedcomputer and the plastic knob is toward you. Line up
the slots in the bracket so they are over the holes in the
Speedcomputer from which the two bottom screws were
just removed. When the slots and screw holes are lined
up, re-insert the two bottom screws through the slots into
the Speedcomputer cabinet. Do not tighten the screws at this
time.
The Speedcomputer is mounted on a camera back by insert-
ing the screw supplied with the Speedcomputer mounting
bracket through the proper hole in the bracket and into the
tripod socket on the bottom of the camera back. The proper
hole to mount the mounting bracket to the camera back is
shown in Fig. 2-1.
After securing the Speedcomputer mounting bracket to
the camera back, push the Speedcomputer toward the camera
back until the rubber feet rest against the camera back. The
two bottom screws holding the bracket to the Speedcomputer
are now tightened.
When it is necessary to open the camera back, the Speed-
computer may be rotated out of the way. The Speedcom-
puter is unlocked from its operating position by pulling out-
ward on the plastic knob. Keep the knob pulled out (away
from the camera back) and rotate the Speedcomputer out
2-1