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 Application: Cini Zoom lens
Have you ever wondered with CINI lenses from Canon and other manufacturers cost so much and are so big? Here's a good patent application to illustrate just how complex these lenses are.
This is a patent application for a zoom CINI lens, for either 25-125 2.8 or a 19-90 4.0 with an extremely complex element design.
Focal distance 25.00 125.00
F number 2.90 2.90
Field angle 31.88 7.09
Image height 15.55 15.55
Whole length of the lens 426.91 426.91
BF 50.00 50.00
Focal distance 19.00 90.00
F number 4.00 4.00
Field angle 39.30 9.80 Image height 15.55 15.55
Whole length of the lens 223.01 223.01
BF 44.99 44.99
Japan Patent Application 2019-008088
blog comments powered by