Also mention the f/1.2 “Big Light” Canon’s new RF mount lens patent exposure
This article comes from Hummingbird.com
In the current Canon RF system, there are already three F1.2 large aperture fixed focus lenses, RF50mmf/1.2L and RF85mmf/1.2L and RF85mmf respectively /1.2LDS. Recently, according to foreign media exposure, Canon once again submitted two new patents for F1.2 lenses at the same focal length. It is worth mentioning that the patent of 85mmf/1.2 lens shows that it will use Canon’s BR lens in the future. Below we take a look at Canon’s patents for these new lenses.
RF85mmf/1.2
Canon RF85mmf/1.2 patent image
Focal length: 83.20mm
Aperture value: 1.24
Half angle of view: 14.58
Image height: 21.64mm
Lens length: 121.31mm
RF50mmf/1.2:
Focal length: 51.10mm
aperture Value: 1.25
Half view angle: 22.95
Image height: 21.64mm
Lens length: 111.01mm
It is worth noting that, Both lenses are slightly longer than the current lenses in length. In addition to these two lenses, foreign media also exposed Canon’s patents for two zoom lenses in the same period.
RF24-150mmf/4
Canon RF24-150mmf/4 patent image
Focal length: 24.70-58.34-145.80mm
aperture: 4.12-4.12-4.12
Half viewing angle: 38.43-20.35-8.44
Lens length: 116.35-134.13-162.90mm
RF13-21mmf/2.8
Canon RF13-21mmf/2.8 patent image
focal length: 13.4017.3021.20mm
aperture: 2.88－2.88－2.88
half angle of view: 58.23－51.35－45.58
image height: 21.64－21.64－ 21.64m
Lens length: 150.15－136.89－130.04mm
Editor’s point of view
These lens patents have their own characteristics, but why did Canon bring it again? With the new 50mm and 85mm f/1.2 lenses, this is a bit weird. Is it just to bring a new coating upgrade? The RF13-21mmf/2.8 lens is even more staggering from the data, and may lead the breadth of the “big three yuan” lens in the future. However, it is worth curious whether these lenses will eventually be transformed into real objects? Let us look forward to it.
Author:SINA,If you need to reprint,please indicate the source:http://www.todaycamera.com/camera-reviews/also-mention-the-f-1-2-big-light-canons-new-rf-mount-lens-patent-exposure
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