see also:

• Canon EF 200mm f/2L lens
• Canon EF 200mm f/2.8L lenses
• Canon EF lenses

• introduced in 1988 as the EF version of the contemporarily introduced CanonFD200mmf1.8
• discontinued in 2003 due to Canon's decision to abandon lead glass for environmental reasons, and eventually was replaced by the Canon EF 200mm f/2L lens released in 2008 which gives closer focus and adds image stabiliser and standardises the rear drop in filter to 52mm instead of 48mm

• 200mm f/1.8 full frame
• white
• 48mm rear drop in filter
• USM AF although AI Servo not as accurate as Canon EF 300mm f/2.8L USM lens
• manual focus is a focus-by-wire design with 3 manual focus speeds
• focus limiter 2.5-5m vs 5m to infinity vs 2.5m to infinity
• only partly weather sealed - no lens mount sealing!
• tripod ring is too far forward for balance and prevents reversing the lens hood
• 130mm x 208mm
• 3,010g
• ET-123 lens hood 135mm x 163mm long and weighs 227g
• trunk measures 8.5“ x 8.75” x 14“ (216mm x 222mm x 356mm)

• http://www.the-digital-picture.com/Reviews/Canon-EF-200mm-f-1.8-L-USM-Lens-Review.aspx
  • not as sharp wide open as the Canon EF 300mm f/2.8L USM lens
  • nicer bokeh, less vignetting and CA at f/2.8 than the Canon EF 200mm f/2.8L lenses at f/2.8
• https://petapixel.com/2017/05/20/canon-200mm-f1-8-legendary-lens-known-eye-sauron/