Richard / Monday, February 7, 2022 / Categories: Canon Patents This post may contain affiliate links(s). An affiliate link means I may earn advertising/referral fees if you make a purchase through my link, without any additional cost to you. It helps to keep this site afloat. Thank you in advance for your support. If you like what we do here, maybe buy me a coffee. Canon Patent Applicaton: RF Macro Lenses In this patent application, Canon describes a series of macro lenses of fairly long focal lengths. Some of the lenses would double as a prime and also a .5x macro which would be certainly useful, especially with a higher megapixel camera where you have more freedom to crop. This patent application according to canon has the goals of; To provide an optical system capable of expanding a close range in a small size while suppressing the number of focus groups, and an image pickup apparatus having the same. Canon RF 135mm F2.0 .5x Macro Focal length [mm] 133.00 Fno 2.05 Half angle of view [°] 9.24 Image height [mm] 21.64 Canon RF 200mm F2.4 .5x Macro Focal length [mm] 200.00 Fno 2.40 Half angle of view [°] 6.18 Image height [mm] 21.64 Canon RF 200mm F2.8 1x Macro Focal length [mm] 199.90 Fno 2.80 Half angle of view [°] 6.18 Image height [mm] 21.64 Japan Patent Application 2022-022595 Previous Article Canon Patent Application: Mirrorless Supertelephoto lenses with built in extender Next Article Canon Patent Application: Hybrid Rangefinder Viewfinder Print Tags: Canon Patent ApplicationMacroRF Mount Please login or register to post comments.