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A lens we'd all like to see happen has appeared in a patent, a 600mm f/4 DO IS. This isn't the first time we've seen a patent for DO lens with a longer focal length than 400mm.
Patent Publication No. 2015-11171 (Google Translated)
- Published 2015.1.19
- Filing date 2013.6.28
Example 2
- Focal length 588.30mm
- Fno. 4.12
- Angle of view 2.11 °
- Image height 21.64mm
- Lens length 397.80mm
- BF 2.02mm
- Positive ShiboTadashi
- Inner focus
- Vibration control
Canon recently updated the 400mm DO lens and solved a lot of the issues some photographers experienced with the first one. If a 600mm variant could cost less than a house, there'd be a pretty good market for it I think.
