Patent: More Supertelephoto Optical Formulas
By| February 5, 2018
Another set of Supertelephotos has appeared in a Japanese patent application.
Japan Patent Application 2018-018101
- EF 300mm f/2.8L
- EF 400mm f/2.8L
- EF 500mm f/4.0L
- EF 600mm f/4.0L
- EF 800mm f/5.6L
We’re expecting new supertelephoto lenses some time in the next 12-18 months.