Sony SEL1635GM Service Manual page 49

5-2-4. Optical Axis Adjustment (1st lens assy)
Note: Optical Axis Adjustment (1st Group) is done by moving the po-
sitioning of the 1st lens assy.
Refer to "2-2. DISASSEMBLY", disassemble the lens, and
move the positioning of the 1st lens assy.
Adjustment Procedure
1. Remove the filter screw barrel and peel off the adhesive of the
1st lens assy, referring to the "2-2. DISASSEMBLY".
2. Loosen the three screws to fixing the 1st lens assy.
3. Attach the checking lens to the flange back tester referring to
the steps 1 to 3 of "Preparations of Using a Camera (General E-
mount Interchangeable Lens Digital Camera)" or "Preparations
of Using a B-L Control Box", set the 1000 mm collimator.
4. Set the zoom to the TELE end.
5. That the ring chart image becomes the center while observing
the 1000 mm collimator so moving the lens little by little using
a thin flat head screwdriver.
Look at the state of the optical axis, look at the state of the optical
axis to move again if misalignment, repeat the procedure.
6. Perform the "5-2-2. Optical Axis Check", check that the optical
axis of checking lens satisfies the specification.
7. When the specification (reference value) is satisfied, tighten the
three screws loosened at step 2.
8. Apply the adhesive bond (B-110) to the following 9 places.
B-110
B-110
5-11
SEL1635GM
B-110
B-110
B-110
B-110