Search the Community
Showing results for tags '400mm f/2.8'.
Found 3 results
MICHAEL GABLER posted an article in NewsTwo 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 x 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 x 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.
Professional users of mirrorless Sony cameras can finally complete their arrays with a new bright FE 400mm f/2.8 GM OSS lens which has been announced for a long time. The lens has been designed having in mind sports photographers as well as the ones wanting to catch wildlife in movement – the combination of the above in the form of, for instance, a bear on a skateboard is, of course, possible. 1). Sony FE 400mm f/2.8 GM OSS The optical system of the new Sony lens is based on 23 lenses placed in 17 groups, 3 of which are low-dispersion fluorite lenses. In order to ensure good balance of the lens, the lenses have been placed in the central and rear parts of the system. The lenses are covered with anti-reflective and fluorine coatings, which enable keeping them clean. 2). Sony FE 400mm f/2.8 GM OSS The lens is equipped with a 11-blade aperture. Two newly-designed linear motors, which are supposed to facilitate the tracking of moving objects, are responsible for the functioning of the autofocus. At our disposal, we have 3 modes of image stabilization and a sharpening clutch. On the side of the lens, we have function buttons, including Full-Time DMF switch, which enables continuous manual sharpening. 3). Sony FE 400mm f/2.8 GM OSS One of the main advantages of the lens is its construction. It has the dimensions of 158 x 359mm, it weighs only 2.7kg and it is supposed to enable, in special circumstances, photographing ”from hand”. The lens is made of magnesium and is, of course, sealed. Inserted filters with the diameter of 40.5mm can be used on the lens. In the case of using 1.4x and 2x converters, the brightness will decrease by, respectively, f/4 and f/5.6. 4). Sony FE 400mm f/2.8 GM OSS Sony FE 400mm f/2.8 GM OSS will appear on sale in September. The enthusiasm may be cooled down by the price of the lens since, as at today, it will cost $12000.
MICHAEL GABLER posted a topic in SonyThe new Sony FE 400mm f/2.8 GM OSS lens is expected to be released in the Summer of 2018. B&H currently lists the lens shipping date as September 2018. Via SonyAddict