Difference between revisions of "Axis (of a fixed lens)"
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Revision as of 01:00, 25 February 2009
The vertical line comprising the axes of revolution of the belt and rings composing the fixed lens. (Fig. 16b)
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
[[Category:2.2 Optical Apparatus]
International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM