Review manufacturer specifications and detailed lab measurements for the Canon EF 70-200mm f/4L USM Lens. Compare the specs and measurements of this lens with other lenses.
Has full-time manual focus. Canon RF 24-105mm f/4L IS USM. Sigma 24-70mm f/2.8 DG DN Art. With full-time manual focus, you can move the focus ring whilst it is in AF (autofocus) mode. This means that you can make manual adjustments once the AF has finished, without changing to manual mode.
Compared Usage Recommendations Canon EF 24-70mm f/4 L IS USM (77mm filter thread, 1.25 feet/0.38m close-focus, 8"/0.2m macro mode at 70mm, 21.2 oz./600g, about $899. enlarge. I got mine at Adorama. I'd also get it at Amazon or at B&H.
Digital Camera World Verdict. The Canon RF 70-200mm f/4L IS USM is almost a miniature marvel – it's so small that it can fit into a sling bag while still mounted on a camera. Center sharpness at 200mm is as good as at 70mm, and with up to 7.5 stops of stabilization it delivers rock-solid performance for both stills and video.Canon EOS 6D Canon EOS 70D Canon EF 24-70mm F2.8L II USM Tamron SP 150-600mm F5-6.3 Di VC USD Canon EF 16-35mm F4L IS USM +37 more Reply Reply with quote Reply to thread Complain Canon calls this the CANON ZOOM LENS EF 24-70mm f/2.8 L II USM. EF means "electronic focus," meaning that there is an autofocus motor in the lens itself. All Canon lenses since 1987 have been EF. L only means as expensive as L; it means nothing technically. II means twice as expensive as the first 24-70mm f/2.8 L. USM means Ultra-Sonic Motor gD7Q.