The RF24-105mm f/2.8 L IS USM Z is the first RF lens to feature iris control, giving filmmakers precise control over their creative expression. With a small f/stop of f/2.8 and 11-blade circular aperture, this lens allows you to achieve that coveted cinematic out-of-focus effect. But that's not all – the lens also boasts up to 8 stops of
The 24-70 f/2.8L II is just a phenomenal lens, actually superior to most fixed focal length lenses and incredibly resistant to flare. But it vignettes a bit until you hit about f/4.5 or f/5.6 and there is no IS. The vignetting cleans up with a single click in post processing, but you should be aware.
The Tamron SP 24-70mm f/2.8 Di VC USD G2 (model A032) is a stabilized standard 2.9x zoom available in mounts for Canon and Nikon DSLRs with full-frame sensors. It also works on their DSLRs with APS-C/DX sensor where the angle of view is equivalent to a 36-105mm zoom lens. Its optical performance is very good inside the APS-C/DX image circle, it89Ij4w.