see also:

• http://www.canon.com.au/en-AU/Pro-Photography/Pro-Lenses/TS-E%2045mm%20f2_8
• perspective control, shift and/or tilt lenses
• Canon TS-E 90mm f/2.8 tilt shift lens
• Canon TS-E 24mm f/3.5L tilt shift lens
• Canon TS-E 17mm f/4L tilt shift lens
• Canon TS-E 45mm f/2.8 tilt shift lens
• Canon TS-E 50mm f/2.8L tilt shift macro lens
• Canon TS-E 135mm f/4L tilt shift macro lens

• announced Aug 2017
• compared to the older Canon TS-E 90mm f/2.8 tilt shift lens
  • this older model is:
    • half the price
    • almost half the weight 565g vs 915g
    • shorter 88mm vs 117mm
    • not as sharp or as optically corrected but nevertheless this is a very sharp lens even wide open (comparable sharp to Canon EF 100mm L but not as sharp as a Zeiss 100mm)
    • can use tele-extenders whereas apparently the new one can't
    • uses 58mm filters instead of 77mm
    • close focus 0.5m instead of 0.39m
    • different optical design with almost half the number of elements and groups
    • no extra coatings
    • 8 blades not 9 blades
    • aperture to f/32 not f/45 but then sharpness at f/32 is already less than half while at f/45 it falls to a quarter of maximum sharpness
    • arguably nicer, less busy bokeh

• 90mm full frame manual focus lens
• Maximum tilt: +/- 10°
• Maximum shift: +/- 12mm
• coating
• close focus 1.3' giving 1:2 macro
• 77mm filter
• 916g (2.01lbs)
• $US2199