Re: A Bit More About the New Big White Lenses That Are Coming
Could not justify buying the 300mm f/2.8 IS L II on its improved optics over the original (although the arrival of the 5DS/R did move the post a little). However, it did bring some other advantages; better handling, lower weight, IS mode III, a much more silent IS motor etc. that I have valued.
Think it will prove very, very to justify buying a possible 300mm f/2.8 IS L III unless Canon does something akin to "magic" like a massive weight reduction (>400g).
Optically, I cannot see the current 300mm f/2.8 IS L II being beat by any kind of margin that would indicate a reason to upgrade. Its Canon's best performer imho.