Lots of patents, how many are real products?
Patent Number: 20090180199
EF 35-70 f/2.8 IS
EF 28-70 f/2.8 IS
I posted this a few days ago and removed it because I didn’t really understand it.
Patent Number: 20090201585
EF 600 f/4 DO
EF 70-300 f/4.5-5.6
EF 28-35 f/1.6-2.1
Patent Number: 20090284847
EF 14 f/2.8
EF 24 f/2.8
EF 300 f/4 IS
EF 400 f/2.8 IS
As always with patents, I really don’t speak their language and a lot can be lost in the translation. I’ll keep this posted and let you folks dissect them.
thanks [NL]
cr
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600 DO – sounds great, hate to see the price tag.
Ooo…first post.
That EF 28-35 f/1.6-2.1 looks interesting. Could this be the short-range f/2 zoom we hear about earlier?
It really is quite a short range, though… At least get it to 24mm at the wide end, then we’ll talk
For sure, all patents are written in law language, and they’ll not point to specific models in order to maximum the protect areas and company interests.
Well, we can guess, base on the published info. ;)
filter diameter aprox 250mm… ^^
Sure would be funny-looking.
…Or maybe they could use one of their funky bulbous protruding front elements a la TSE-17
Yes very interesting. I also agree it should start at 24mm.
Hmmm, not necessarily-
By keeping the zoom range short, its workable:
28mm / 1.6 = 17.50mm
35mm / 2.1 = 16.67mm
Other lenses, such as the 24-70 F2.8 have openings that are larger:
24mm / 2.8 = 8.57
70mm / 2.8 = 25.00
Meaning this lens, while large, will probably not be larger than the 24-70, nor need a filter thread beyond 77mm.
28-35 is lame. What good is that? I’ll keep my 35L and take a half step back.
Screw it. The 4/400 DO is a total mess (bad IQ), so I don’t set even the slightest hope in another DO…
Exactly!!
The 400 DO is a terrific lens, albiet pricey.
The only issue I have seen with it is lower contrast. That’s easily remedied in post.
Rumored about the 400 DO: Early production models had lower IQ than they do now. Nothing has been confirmed though.
I agree. That’s a little too short. At that range, it only “replaces” two primes: 28mm and 35mm–that are not so far apart that it is a dramatic difference in use. At least replace 3 primes!
yeah, agreed, it should be a 24(or 20)-35 but even still this would mean a MUCH larger lens
Hi,
What about the Patent Number: 20090284847 ?
Does it mean that Canon works on a new 300mm f4 IS ?
It doesn’t even replace them at all… Unless ofcourse the resolution, bokeh and other specs match the primes… (the 28 1.8 isn’t exactly stellar, but the 35 1.4 certainly will put up a fight)
Oh, and it’s a very short range indeed, so what is the advantage of ‘zooming’ here? If they make it 20-50 f/2, it might be interesting, though.
With a shorter zoom range, the IQ would probably be very close to prime quality. If they price this one right, say $250-$350 maybe, this lens will be interesting. :)
Eeeh i don’t think so… The 35 1.4 will deduct some $1500 from your bank account ;) (at least around here). Oh, and the notion that new weird-tech never comes cheap. IS still has a major price premium as well, DO is even weirder. I’d fear a price of $1000 to $1500 at least. If it’s sharp, add another 500.
Just because something is patented does not mean that it will become a product. I expect that searching through patents for lens products is giving us an eye on what gets made internally (in trial products) and not necessarily a reflection of what gets run up as a consumer product.
It is better to patent something that might become a real product, early on, because of the length of time it takes for patents to be approved.
If you looked through the entire patent catalogue, I’m sure you will find many patents that apply to things that never saw the light of day, for one reason or another.
For example, why do they mention both the 35-70/2.8IS and 28-70/2.8IS in one patent? I doubt very much that Canon would make *both* of these lenses – and why these instead of a continuation of the 24-70/2.8 as an IS?
My guess is that they’ve manufactured sample products of both, patented them (in the aforementioned patent) and then proceeded to evaluate them with testers, etc, to determine which one gets the nod and which one does not.
The patent bit protects them should a test unit fall into the wrong hands (either deliberately or not) after it leaves their R&D labs.
Wondering when will 35-70 will come alive and how big how much it will be.
I wonder how many they have kept through the years,
I bet it would be an interesting collection.
This lens would match up with my 16-35LII, and possibly have better IQ than the 24-70.
Buying it will depend on the 14-24 if & when it becomes available, and it’s IQ.
Hello,
You don’t see the revolution in the patent with the news
400/2.8 LIS NG.Look carefully at the patent:It’s an optical revolution if they release such lenses next year!
The 28-35 reports angles of view as 46.91 degrees at 28.81 mm and 39.91 degrees at 34.43 mm. I didn’t work the math all the way out, but that’s far more consistent with a 1.6 crop factor than a 135 format lens.
dont get to hopeful these lenses (zooms mentioned above) might end up in a powershot.. the s90 has a f2-4something zoom.. its fun to imagine though..
I want an EF 600mm f/4 DO IS USM lens. Great for wildlife photography but the EF 600mm f/4L IS USM is rather heavy at 11lb.