30
STEP 2: IOP FILTER OR INTERNAL GLASS ELEMENT
THE BELOW PROCEDURE APPLIES FOR ALL OPTIMO PRIME SERIES
0 - Before putting back IOP filter or internal glass element check the optical element cleanliness. If necessary, blow dry air and clean it properly.
1 - Put the IOP filter or internal glass element in the barrel. The pin holes of the IOP filter or internal glass element must be on top.
2 -
Put the spanner 66066961AA in position where ‘Internal Glass Element’ engraving can be read. Rotate anti-clockwise so the IOP filter or
internal glass element falls in the correct thread position. Tighten the IOP filter or internal glass element. Do not apply high torque and tighten the
retainer just in contact.
STEPS 3.1 AND 3.2 APPLY ONLY FOR F18, F32, F40
3.1 - Put the internal diaphragm in the barrel. The pin holes of the internal diaphragm must be on top.
3.2 - Put the spanner 66066961AA
in position where ‘Internal Diaphragm’ engraving can be read. Rotate anti-clockwise so the internal diaphragm
falls in the correct thread position. Tighten the internal diaphragm. Do not apply high torque and tighten the retainer just in contact.
1
2
3.1
3.2