Canon 11-24/4 patent
- Thread starter rs
- Start date
Imagine the size of the front element. :
If I recall, Nikon had a 10 mm full-frame patent some time ago.
What I do like in Canon's approach is that it has a constant aperture ratio, and that this aperture ratio is F/4. From the usage point of view, I believe this is actually a better choice than F/2.8 for this focal length range. 16-35 is another case, though.
Let's see if they release it, though. Price may become an issue, but F/4.0 helps there a bit too.
What I do like in Canon's approach is that it has a constant aperture ratio, and that this aperture ratio is F/4. From the usage point of view, I believe this is actually a better choice than F/2.8 for this focal length range. 16-35 is another case, though.
Let's see if they release it, though. Price may become an issue, but F/4.0 helps there a bit too.
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RGF said:
I'll settle on 'well justifies an upgrade from the Sigma 12-24mm F4.5-5.6 DG HSM II', which I think will have to be the same as 'rivals the Nikon 14-24mm's IQ'.
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Ellen Schmidtee said:
+1
I own and love the 17TS-E. IMO Canon would not likely produce something that fell short of the Nikon. I hope they would use the IQ of the 17 as a guide for this lens.
I had the Sigma 12-24 and it was wonderful within its limitations. I would buy this in an instant if it promised good edge sharpness at f8.
I would expect a price of about $2500+ and it would not make me sad.
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Ellen Schmidtee said:
If Canon put this on the market I will be ready to preorder it. I want a zoom that works under the 24mm focal length for full frame. I have tried the sigma but the IQ doesn't convince me, specially at the borders of the frame.
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Normalnorm said:
I think the TS-E 17mm when shift-stitched covers (roughly) an angle of view of an 11mm FF lens so Canon does in fact already have a rectilinear design wide enough, plenty sharp and with minimal distortion. Who knows maybe there there's something to this rumor...
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