Patent: Lots of super telephoto lenses mentioned

Jul 20, 2010
7,277
142
Canada
www.canonrumors.com
#1
Canon’s work on super telephoto lenses continues, and we expect to see a few more announced next year ahead of the Summer Olympics which take place in Tokyo, Japan.
Canon’s latest super telephoto lenses the EF 400mm f/2.8L IS III USM and EF 600mm f/4L IS III USM are the lightest such lenses currently available and have begun shipping in small numbers.
USPTO patents 20190041606 and 20190041605 uncovered by Canon News describe the following embodiments.
Canon 300mm f/2.8L IS III USM

Focal length: 294.00mm
F-number: 2.91
Half angle of view: 4.21°
Image height: 21.64mm
Total lens length: 276.40mm
BF 65.35mm

Canon 400mm...


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Dec 20, 2012
2,228
243
Southeastern USA
#4
I wonder what, other than RF related tweaks, would be so compelling about a 500mm f/4 III? I mean compelling enough to pay a couple thousand more than the excellent version available right now.
 

degos

EOS T7i
Mar 20, 2015
99
46
#6
I wonder what, other than RF related tweaks, would be so compelling about a 500mm f/4 III? I mean compelling enough to pay a couple thousand more than the excellent version available right now.
The fact that it *exists* would be sufficient enough for many, and the fact that the II would drop off the servicing list within a few years. Sell and upgrade, sell and upgrade... money isn't much of a concern at that level.

Meanwhile regard Exhibit A: the 300mm f/4 IS, still the same as it was in 1997. If you're not in the top 1% of camera enthusiasts, Canon hates you.
 

Chaitanya

EOS 6D MK II
Jun 27, 2013
954
78
32
Pune
#7
The fact that it *exists* would be sufficient enough for many, and the fact that the II would drop off the servicing list within a few years. Sell and upgrade, sell and upgrade... money isn't much of a concern at that level.

Meanwhile regard Exhibit A: the 300mm f/4 IS, still the same as it was in 1997. If you're not in the top 1% of camera enthusiasts, Canon hates you.
Lets not forget the 400mm f/5.6L USM, it's a staple of bird photographers here in India. One of the most common lenses out there(though nowadays most are dumping that lens in favour of 150-600mm lens).
 
Likes: fox40phil

docsmith

EOS 6D MK II
Sep 17, 2010
814
139
#9
Interesting. Of course, they could release new versions of the 300/500 II. Make them lighter, as good or better than anything else to be released by Sony and Nikon. This all makes sense to me.

What I find interesting is that a CR2 rumor claimed that Canon themselves said no new EF lenses in 2019.
https://www.canonrumors.com/forum/i...-as-7-new-rf-lenses-coming-in-2019-cr2.36535/

Of course, anything could be true: these are defensive patents that will never be a released product, Canon releases EF lenses regardless of what they said, or these could be RF lenses.
 
Likes: Jack Douglas

NancyP

EOS 6D MK II
Dec 17, 2013
1,296
14
#10
Chaitanya, that's interesting about the popularity of the 400 f/5.6L in India. I keep recommending this lens to beginner bird photographers who don't need a telephoto zoom (those people I steer towards the 100-400 L versions I, or II if they can afford it). I also recommend getting a monopod or tripod for the no-IS 400, for those situations where one is pre-focused on a particular spot and is waiting for the bird to show up. The relatively ancient 400 f/5.6L for hiking photographers is the equivalent of "ultra-light" backpacking gear for long-distance hikers - excellent performance in a pleasant-to-carry format.
 
Feb 21, 2013
28
4
#11
Arthur Morris (http://www.birdsasart.com/) has been a proponent of the 400mm f/5.6 EF-L since it hit the market, calling it his "toy" lens (when he didn't want to lug around his heavy glass or shoot with a tripod), and he recommended it unreservedly as a beginning birding lens. Myself, I bought the lens when I purchased Canon's first DSLR (the D30) and have used it subsequently on a Canon 10D, 5D and 6D. Now I'm using this lens on a Sony A7III via Metabones V adapter. A7III IBIS works well with the lens, so it is even more feasible to shoot this lens hand-held. The A7III is also the first camera I have had that can auto-focus this lens with a teleconverter attached (I have the Canon TC-14II).