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Canon Patent Application: F1.8 series of primes
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Canon Patent Application: F1.8 series of primes

In this patent application, Canon describes some medium telephoto primes.

It would be no surprise to me if Canon does at least one of the lenses mentioned in this patent because small, cheap, and optically good primes are necessary in any ecosystem.  I suspect that 100mm F1.8, since the 100mm F2.0 has been a great bang for the buck for decades on the EF mount.

Canon RF 130mm F1.8

Focus distance     131.00
F-Number             1.85
half angle of view   9.38
image height        21.63
Length of lens     155.01
Back Focus          27.26

Canon RF 150mm F1.8

Focus distance     150.00
F-Number             1.85
Half angle of view   8.21
Image height        21.63
Length of lens     164.98

Canon RF 100mm F1.8

Focus distance     105.00
F-Number             1.85
Half angle of view  11.64
Image height        21.63
Length of lens     145.01

Japan Patent Application 2020-173384

 

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