Re: Canon Shows off RF 500mm F5.6 L IS in Latest Patent
EB-1 wrote:
The Canon 600/4 RF is humoungous. It's the largest of the modern 600/4s and bulges my Gumbas gear 32L at the seams, making it over the airline length also. The EF 500/4 IS II is a lot smaller and no doubt a newer version could be even smaller yet. I suppose there is some use for the 500/5.6 w/1.4x TC, but Canon has not made a DO in a decade so I'm not expecting it to be so small.
EBH
Well Nikon made their new 400 f/4.5S very small without PF optics, so I think a 500 f/5.6 (which has the same size entrance pupil) can be small too even without DO optics. It would have to be a little longer, but it could still be light.
Elsewhere the Fuji XF 500 f/5.6 is just $1,335g and the version of that lens covering medium format is only 40g heavier at 1,375g, so there is no reason that Canon couldn't make a lens that is that light. This would bring it in at very close to the weight and size of the RF 100-500L. In my estimation that would be a very compelling lens.
Apr 23, 2026 at 05:42 AM
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