AAton XTRprod User Manual page 90

Shift the lens port by refastening the lens port ring utilizing the se-
cond set of screw holes on both the lens port ring and the lens hol-
der. The clockwise-side holes on both are for standard 16 positio-
ning, the counter-clockwise holes are for Super16.
Carefully replace the lens port ring and its shims, and install the
three allen screws in the appropriate holes as detailed in the dia-
gram. Be sure not to damage the shims; take extra care to align their
cutouts around the holes to be used. Fasten the three screws, then
loosen each 1/2 a turn in preparation for fine centering.
• 5. Fine-Centering of the Lens Port.
There are two methods by which to set the exact centering of the
lens to the viewing screen. Both methods are equally acceptable.
Method 1 - via the Port Alignment Tool
The port alignment tool consists of the alignment jig and the cente-
ring rod.
Check that the screws of the lens port ring are loose enough that the
ring can move independently of the lens holder.
Clear the mirror shutter as described in Step 1 so that it is rotated
safely inside the body and the aperture opening could be seen from
the lens port opening. Make sure that the battery is removed from
the body before proceeding further.
Remove the centering rod from the alignment jig and position the
jig over the lens port ring with the jig's engravings facing out. Make
sure the alignment jig is flush against the surface of the lens port
ring.
While holding the jig in place and looking at the aperture plate, ca-
refully slide the appropriate side (16 / Super16) of the centering rod
through the jig and into the port until it peeks through the outside
of the aperture plate. If the centering rod is not centered to the aper-
ture plate and cannot slide through its opening, gently move the
lens port ring until it can do so.
For 16 centering, you'll notice that the 16 end of the centering rod
is narrower than the aperture and can easily fit in place. In this case,
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