The neutral UV filter on the older version is marked 'L39 (UV)'.
The neutral ND filter on the later version is marked 'NEUTRAL'.
There's no fourth position w/o any filter on both versions.
The ND filter of the second verson must be a ND0 filter (no intensity
reduction) otherwise the F3.5 speed would never be achieved.
Hans
: The archives
http://www.mir.com.my/rb/photography/hardwares/classics/olympusom1n2/sha
red/zuiko/htmls/fish16mm.htm
: say that the built- in filters for this lens were
: first version : L39, Y48, O56
: later version : replaced L39 by ND
: Both lenes however seem to be marked with 'neutral' on the filter
wheel
: for the L39 and ND positions respectively ?
: Therefore my question is the L39 or ND filter permanently engaged or
is
: there a fourth position without anything ?
: How can I differ between old and new vesrion of the lens if both are
: labelled neutral on the outside filter selector?
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