Patent: Dual internal teleconverter telephoto lens.


CR Pro
Dec 16, 2011
Canon rocks with lenses!!! imagine if Canon makes lenses for Sony and Nikon we will have best of all worlds. Best Sensor Tech (Sony), Best weather sealing and ergonomics (Nikon&Canon), Fantastic Lenses (Canon)

Yeah. Too bad the stills world isn't like TV/"Movie" production.

PL mount Canon 17-120 on Sony F55

Heck, at one point Canon, Fuji, Nikon and Angenieux all built 2/3" B4 mount lenses for TV cameras. It's just Canon and Fuji, today.
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I would have “settled” for a 400/2.8 with 1.4x builtin...


$20k or thereabouts, but worth every penny...
why so expensive ?
The basic 400F5.6 is £1200, adding a couple of inbuilt converters at £450 each would take it to the same price region as the 100-400 Mk 2. This would make a decent birders lens.

With the 400/2.8 (II) recently at $10k (now reduced), the 200-400 at $11k, and the new 400/2.8 (III) at $12k, I think adding a 1.4x to the 400 would more than likely add $2-3000 to the cost (never mind the sales price). With a reducer as well, it would still be a bargain!
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