The RF 400mm F2.8 L IS USM features impressive image quality at even wide open apertures, incredibly fast AF, and best-available build quality. That is what I said at the beginning of the Canon EF 400mm f/2.8L IS II Lens review, it still applies to the version III lens, and it now applies to the RF lens. This image of a landing Wood Stork was photographed at Eco Pond, Everglades National Park with the tripod-mounted Canon EF 600mm f/4L IS II USM lens, the Canon 2x EF Extender III (Teleconverter), and the Canon EOS-1D X Digital SLR camera. ISO 800: 1/2000 sec. at f/10 in Manual Mode; with the off-angled light this image was a bit under-exposed.. The 400 f/2.8 IS III features superb image quality at even wide open apertures, incredibly fast AF and best-available build quality. That is what I said in the beginning of the Canon EF 400mm f/2.8L IS II Lens review and it still applies to the successor, the version III lens. The EF 400mm f/2.8L IS III USM Lens is the 6th generation in Canon's Set the focus preset switch to ON or . Press the shutter button halfway or turn the focusing ring to focus the distance you want to preset. Press the focus preset button. The focused distance will be preset. If the focus preset switch was set to , the beeper will sound once. By turning the playback ring to the left or right, the focus shifts as Compare Canon EF 500mm f 4L IS II USM Lens vs Canon RF 600mm f 4 L IS USM Lens vs Canon EF 400mm f 4 DO Tips & Reviews. About Us. The Professional's Source Since 1973 If you mount your lens on a crop-sensor camera, it increases the effective focal length. Here we’ve used the EF 500mm f/4L on an APS-C-sensor Canon EOS 7D Mark II, whose 1.6x crop factor produces an effective focal length of 800mm – ideal for getting decent-sized shots of small, shy birds such as the western yellow wagtail. 2. Key Features. Precisely machined from a solid block of 6061-T6 aluminum, the Really Right Stuff LCF-53 Foot will replace the original foot of a Canon EF 200-400mm f/4L IS USM lens with internal 1.4x teleconverter or a version II 400mm, 500mm, or 600mm IS USM lens and provides an extremely durable and stable platform for your lens. Canon 500mm f/4 L IS II, about $9,000 new or $6,000 used. Canon’s update to our lens is a bit sharper. More importantly, it’s smaller and lighter, improving the usability. The upgrade is worth it if you have the budget. Canon 600mm f/4 L IS (Mark I), about $4,000 – $6,500 used. It brings you 20% closer than the 500mm f/4, but it’s .

canon ef 500mm f 4l is usm review