see also:

• Olympus OM system
• super telephoto lenses
• http://www.mir.com.my/rb/photography/hardwares/classics/olympusom1n2/shared/zuiko/htmls/300mm.htm

• 300mm focal length
• full frame
• f/4.5 aperture
• 6 elements in 4 groups
• later versions were multicoated
• older versions nominated as F-Zuiko not Zuiko
• close focus 3.5m giving area of 21cm x 32cm (8.3“ x 12.6”)
• built in retractable hood
• 72mm filter
• tripod mount
• 181mm long with hood extended
• 1000g