Search results
Results from the WOW.Com Content Network
With the same converter a 400mm f/5.6 lens would have a maximum aperture of f/11 and autofocus would be disabled. Though not specified by Canon as such, users have reported that the tilt-shift lenses in Canon's line-up can also be used with the extenders.
The 400mm f / 4 DO IS II USM, which replaced an earlier version of the same lens in 2014, [3] is one of only two Canon lenses that make use of diffractive optics (the other is the EF 70–300mm f/4.5–5.6 DO IS USM). The use of diffractive optics allows the lens to be significantly lighter than it might otherwise be.
The EF 100–400 mm f / 4.5–5.6L IS USM is a professional EF mount telephoto zoom lens manufactured by Canon Inc. The first version of this lens was announced in September 1998, and an updated version was announced in November 2014.
The Sony FE 100-400mm F4.5-5.6 GM OSS is a premium, variable maximum aperture full-frame telephoto zoom lens for the Sony E-mount, announced by Sony on April 19, 2017. [ 1 ] [ 2 ] The FE 100-400mm GM lens is currently the second longest focal length native zoom lens offered for the Sony E-mount, only surpassed by the Sony 200-600mm G lens.
The EF 200–400 mm f / 4L was first announced to be in development in February 2011 and a prototype was showcased at the 2011 CP+ tradeshow. [1] In November 2011, Canon announced that availability of the lens would be postponed to an unspecified later date. [2] The lens was only released more than a year later in May 2013. [3]
The teacher marking the student's answer incorrect, saying, "That is not possible because 5/6 is greater than 4/6 so Luis ate more." Redditors were quick to respond with their disapproval ...
The Sigma APO 120-400mm F4.5-5.6 DG OS HSM lens is a super-telephoto lens produced by Sigma Corporation. It contains three SLD (Special Low Dispersion) glass elements to provide correction for chromatic aberration. It is aimed toward advanced consumers.
The first model, named 300-800mm F5.6 EX IF APO HSM (manufacturer code 594) was announced on 4 October 2002 at that year's Photokina and first delivered on 29 January 2003. The construction of the lens has 18 optical elements in 16 groups including 2 ELD (extra-low dispersion) elements.