Search
× Search

News

Canon Patent Application: Mirrorless APS-C kit telephoto zoom
CanonNews
/ 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 Application: Mirrorless APS-C kit telephoto zoom

In this patent application, Canon is attempting to patent a mirrorless APS-C telephoto zoom.  With any telephoto, it's nearly impossible to tell what mount this could be made for, as either the EOS-M or the EOS-RF mount are very similar in back focus distances.  All these embodiments are for a 55-250mm F4-5.6 lens.  With Canon seemingly limiting the EOS-M to lenses that are 61mm in diameter, this seems very unlikely to be an EOS-M design.  Also, two of the embodiments are very close to the back focus distance of the RF mount (20mm). 

As with any patent applications, it's never a guarantee that this will end up in an actual product, but it's more insight into what Canon is researching.

Canon APS-C 55-250mm F4-5.6

focal length        56.50 135.00 245.00
F number             4.12   5.17   5.85
Half angle (°)      13.59   5.78   3.19
Image height        13.66  13.66  13.66
Lens total length  138.50 174.37 193.50
BF                  21.90  53.63  70.32
Focal length        55.03 135.00 245.00
F number             4.12   5.17   5.85
Half angle (°)      13.94   5.78   3.19
Image height        13.66  13.66  13.66
Lens total length  140.00 175.51 194.32
BF                  20.65  42.09  46.74
focal length        56.50 135.00 244.99
F Number             4.12   5.17   5.85
Half angle (°)      13.59   5.78   3.19
Image height        13.66  13.66  13.66
Total lens length  134.97 171.67 189.98
BF                  14.02  32.29  45.60

Japan Patent Application 2021-081660

Previous Article New Images of the EOS-R3
Next Article Canon Patent Application: Canon RF 85mm F1.4L
Print
blog comments powered by Disqus

Keep In Touch

FacebookTwitterLinkedIn

Our Sponsors

Want to buy me a coffee?

Free Shipping to the USA and Canada*

Use CANONNEWS for $10 off AuroraHDR

Use CANONNEWS for $10 off Luminar

*Conditions may apply

 

Terms Of UsePrivacy Statement© 2024 by CanonNews. This site is not affiliated with Canon Inc. or it's subsidiaries.
Back To Top