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THE BELOW PROCEDURE APPLIES FOR ALL OPTIMO PRIME SERIES
4 - Mount the internal glass barrel onto the internal part of the IOP element spanner 66067121AA. First, rotate the barrel anti-clockwise so it falls
in the correct thread position.
5 - Tighten the internal glass barrel up to the end-stop. Do not apply more torque after you reached the end-stop.
6 - Put the retainer onto the barrel. Put the external part of the spanner 66067121AA so that the spanner pins are in the retainer pin holes.
7 - Put the barrel and retainer back in the lens by sliding straightly the spanner. Hold the spanner with the internal part of the spanner.
8 - Tighten the retainer with the external part of the spanner. Do not apply high torque and tighten the retainer just in contact.
9 - Untighten the internal part of the spanner and pull out the whole spanner by the internal part of the spanner.
10 - Check that the iris is functioning correctly by rotating the iris gear. The iris torque should be smooth and even. For F24, F28, F32, F40, F50,
F60, F75, F100, check that the iris ring is not moving when you rotate the focus gear back and forth. If you face any issue release the barrel
retainer and tighten it with less torque.
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