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Two of the biggest telephoto Canon lenses - EF 400mm f/2.8L IS III USM and EF 600mm f/4L IS III USM have become renewed. In their third versions, the devices have significantly lost on weight, they became sealed and their ergonomy has significantly improved. Canon EF 400mm f/2.8L IS III, with the dimensions of 163 × 343mm, lost more than one kilogram - from 3850g to 2840g. A slimming treatment of the bigger of the lenses, EF 600mm f/4L IS III USM, has been a little less successful and the lens now weights 3050g (its predecessor - 3920g) and it has the dimensions of 168 × 448mm. Both lenses have been sealed and the white finishing which characterizes the lenses from the L series is thermal insulation, thanks to which the devices are supposed to work better in extreme temperatures. In order to facilitate keeping the lenses clean, the external surfaces of the first and the last lens have been covered with the fluorine coating. 1). Canon EF 400mm f/2.8L IS III USM Both lenses are equipped with the control elements on the body enabling focus adjustment, blocking and stopping focus settings. With the use of the ring knob we can go to two pre-programmed focus positions at any time. The focus mode, focus range, programmed focus restoration and the IS controllers are placed ergonomically. 2). Canon EF 400mm f/2.8L IS III USM The optical systems of both lenses are similar - in both of them we have seventeen lenses placed in thirteen groups, a 9-blade aperture which can be closed up to f/32, while the nominal aperture for 400 mm is f/2.8 and for 600mm - f/4. In both lenses we will find the elements of fluorite lenses and the SubWavelenght Structure Coating (SWC) so we can expect significant reduction in chromatic aberration, flares and blurring while maintaining high quality of the reproduced colors, high resolution and contrast. 3). Canon EF 600mm f/4L IS III USM The autofocus has also been treated as priority. New Canon lenses are equipped with ring USM motors with autofocus and an effective processor enabling fast and quiet AF work. Both lenses make it possible to obtain the "pull-focus" effect with focus regulation and focus preset. Manual focus adjustment in full-time is also available and the focusing speed can be adjusted also by manual electronic regulation. 4). Canon EF 600mm f/4L IS III USM The lenses are to appear on sale in December and they will cost respectively: Canon EF 400 mm f/2.8L IS III USM - $12,000 Canon EF 600 mm f/4L IS III USM - $13,000 In the sets we will find only soft cases. Hard suitcases and new short hoods will be available optionally.
Canon presented the EF 70-200mm f/2.8L IS III USM lens, dedicated for professionals. Unfortunately, no breakthrough has taken place and the changes in comparison to the predecessor are rather minor. The optical system consists of 23 elements placed in 19 groups (5 low-dispersion lenses and one fluorite lens), the 8-blade aperture can be closed up to the value of f/32 and the stabilization system has the efficiency of 3.5 EV. The lens is equipped with an ultrasonic ring autofocus drive – the minimum focus distance is 1.2m. One of very few novelties of a new lens are anti-reflective ASC coatings. The front and rear lens have been covered with fluorite coatings, which help in keeping the lenses clean. 1). Canon EF 70-200 mm f/2.8L IS III USM The body of the lens presented today is made of magnesium and fully sealed, thanks to which it is resistant to dust and splashes. In the set, we will find a tripod mount and a sun shield. The lens weighs 1,440g and its dimensions are 89 × 199mm. The lens will appear on sale in August 2018 and it will costs $2,100.
A few significant improvements, compared to the first generation from 2010, can be found in the Canon EF 70-200mm f/4L IS II lens, presented a few days ago. The stabilization system has the efficiency of 5EV and it offers three modes of work: for static shots, for photographing of fast-moving objects and for panning shots. The system is also quieter than its predecessor. 1). Canon EF 70-200mm f/4 IS II The optical system consists of 20 elements placed in 15 groups, including one fluorite lens and two low-dispersion lenses. The front and rear lens have been covered with fluorite coatings, which help in keeping the lenses clean. In order to minimize light flares and light reflections, Super Spectra Coatings were used. The lens is equipped with an ultrasonic ring autofocus drive – the minimum focus distance is 1m. The lens has the dimensions of 80 × 176mm and it weighs 780g. Canon EF 70-200 mm f/4L IS II is to appear on sale this month and it will cost $1,300.