Patent: Canon 100-400mm f/5.6-7.1
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I'm sure Canon has a perfectly good reason for these lenses ending in f/7.1... but it's a mystery to me.
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The reason is: because it's possible. Now that there's no artificial f/5.6 restriction to AF anymore.
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D
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The only way this makes sense, IMO, is as an M lens. It would be nice, actually, to have the option of a native EF-M lens with more than 200mm of reach, even if that means f7.1 at the long end to keep it compact. Whatever.
Personally I think I’d rather hold out for a 600mm FF lens, though. Shots taken back in the day with my 7D left me wanting in terms of detail, etc...
Personally I think I’d rather hold out for a 600mm FF lens, though. Shots taken back in the day with my 7D left me wanting in terms of detail, etc...
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The new restriction is that DLA starts happening around f/5.1 on the M6II. But DLA is not a cliff, so f/7.1 could very well be 'good enough'.
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Given the layout, I think this will fit into the standard 61mm M series barrel diameter. If not, it will come very close. Take this, the 18-150, and the 11-22 and you have 17.6-576mm equivalent in a very small package with good to excellent IQ. I think M is here to stay for quite a while.oh woah could be amazin birdler lense for M cameras . Sharpest supertele ever made if made well?
Thank you canon confusing me even more about what to do next
So M5ii must be coming , and M barrel diameter isnt unbreakable law.
There isnt IS so M5ii got ibis?
Guys i would love to see your face if next M camera would be M1would make some :O
It even makes sense ,camera for professional bird shooters
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We can only guess to why, but Canon seems to really stick to that self-imposed restriction.
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Ugh. So Canon lets it's engineers off the chain for camera bodies and the cripple hammer attack the lenses instead.
No sorry but 7.1 is just one big fat noooooooooooooooooooooooope
No sorry but 7.1 is just one big fat noooooooooooooooooooooooope
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They've developed the very fast (RF f/1.2) and very slow (RF f/7.1)... perhaps they have a happy middle in store for us next?
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The DLA for a new iPhone is about f/2.4 and the various lenses vary from f/1.8 for the main to f/2.4 for the wide angle. The advantage of these very short focal lenses is that it is easy to get wide f-numbers to compensate for the small pixels of about 1.4 microns.
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Your comment is hardly worth replying to, but most likely it’s the exact opposite to what you think: the disappearance of the f/5.6 limitation lets engineers explore more of the space of plausible lens designs.
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So the "this new RF mount will allow some wild new lens designs, we can't wait to see what's in store" hype became "just get an adapter and use older glass".
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