Fujinon XF 56mm F1.2 R

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Fujinon XF 56mm F1.2 R
Fujinon XF 56mm F1.2 R ttl view.jpg
Maker Fujifilm
Lens mount(s) Fujifilm X
Technical data
Focus drive Micromotor
Focal length 56mm
Focal length (35mm equiv.) 84mm
Aperture (max/min) f/1.2
Close focus distance 0.70 metres (2.3 ft)
Max. magnification 0.09
Diaphragm blades 7, rounded
Construction 11 elements in 8 groups
Weather-sealing No No
Lens-based stabilization No No
Aperture ring Yes Yes
Unique features Double-sided aspheric element, two ED elements
Application Portrait
Max. length 70 millimetres (2.8 in)
Diameter 73 millimetres (2.9 in)
Weight 405 grams (0.893 lb)
Filter diameter 62mm
Introduction 2014

The Fujinon XF 56mm F1.2 R is an interchangeable camera lens announced by Fujifilm on January 6, 2014. As of 2015, it is one of the widest-aperture native mirrorless lenses.

APD variant[edit]

In September 2014, Fujifilm announced a variant of this lens, the Fujinon XF 56mm F1.2 R APD, which has an additional APD filter element for apodisation, with the goal of improving the appearance of out-of-focus areas, or bokeh, when the lens is used wide open. This design principle is based on an optical technology originally invented (and patented) by Minolta in the 1980s and implemented in the Minolta/Sony series of Smooth Trans Focus lenses since 1999. As a side effect, light transmission is reduced at the widest apertures, making f/1.2 effectively t/1.7, having progressively less light reduction until f/5.6, beyond which the APD lens has the same light gathering as the standard model without the internal filter.[1] The APD lens also cannot take advantage of phase detection autofocus on cameras with this function, relying instead on slower contrast detection autofocus.[1]