Patent: Canon EF-S 11-24mm f/3.5-4.5

[preppyak]

I think it might be possible that Canon has discovered an optical formula that works well and has patented it as a defensive measure against other companies using it to produce a competitive lens.

I think you hit the jackpot. This is one of the possibilities they came up with for the 10-18, yet despite it maybe being better, they went with the more practical choice.

If they released an EF-S 11-24 on top of the 10-18, I'd have no idea what to think.

 

[WorkonSunday]

is it actually EF-S.... or could it be EF-M for EOS-M. we know there is rumor for a more serious EOS-M...perhaps this will beef up the lens line up?

 

[lintoni]

Also the back focus of just 3.26mm means its not even EF-S, as that has a 44.0mm flange distance and a mirror box to clear.

This appears to be an EF-M lens.

+1 I don't think it's a coincidence that this patent coincides with rumours of a new EOS-M.

kind of moronic because there's already an exceptional 11-22mm EF-M out there.

You're right, I'd forgot about that lens.

 

[rrcphoto]

I think it might be possible that Canon has discovered an optical formula that works well and has patented it as a defensive measure against other companies using it to produce a competitive lens.

I think you hit the jackpot. This is one of the possibilities they came up with for the 10-18, yet despite it maybe being better, they went with the more practical choice.

If they released an EF-S 11-24 on top of the 10-18, I'd have no idea what to think.

well the 10-22mm is getting pretty long in the tooth. now 10 years old - canon could be thinking it needs an update as well.

also it's 3.5 to 4.5 aperture - versus 4.5 to 5.6 .. 2/3's of a stop faster, a much better build quality than the 10-18 and possibly better optically than both the 10-18 and the 10-22?

 

[Marsu42]

well the 10-22mm is getting pretty long in the tooth. now 10 years old - canon could be thinking it needs an update as well.

I doubt that's the way they think, esp. as the 10-22mm is a midrange ("gold") crop lens with a good reputation. Canon won't mind about the age of the lens, this only means more profit for them (development and production costs).

They won't add weather sealing (not an L lens), and doing a serious iq update would probably propel the new lens out of the market spot of the 10-22. If people want "better", it's likely Canon would like them to upgrade to ff and the 16-35L-IS or the rumored new f2.8 uwa.

 

[rs]

Also the back focus of just 3.26mm means its not even EF-S, as that has a 44.0mm flange distance and a mirror box to clear.

This appears to be an EF-M lens.

+1 I don't think it's a coincidence that this patent coincides with rumours of a new EOS-M.

kind of moronic because there's already an exceptional 11-22mm EF-M out there.

Moronic or not, read the patent. How can it mount onto a DSLR with that BF?

Please remember that just because there is a patent, it doesn't mean this lens will become a production reality.