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Compared to Fujifilm 14mm f/2.8 (Fujifilm X-E1, Bristlecone)
Shot on the 16-megapixel Fujifilm X-E1.
A focal length of 12mm is a significantly wider field of view than 14mm, easily seen in comparing the entire frame images included here: in full frame terms it is 18mm vs 21mm. With DSLRs, one would not confuse an 18mm with a 21mm as the experience is notably different. The field of view factor alone might make the 12mm the preferred choice for anyone shooting tight interior spaces, or looking for maximum foreground/background emphasis.
It turns out that the Fujifilm X-E1 exhibits a focus creep bug. The results shown happear to have been degraded by this bug for both lenses, with a rearward move in focus (this is not focus shift, but rather an actual change in the focus of the lens by the camera, a very serious camera bug). It is impossible to make such a series properly with Fujifilm X cameras.
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Diglloyd Guide to Mirrorless offers comprehensive integrated coverage of most APS-C and full frame mirrorless cameras and lenses.
Special emphasis is placed on Sony full-frame, including Sony lenses and the high performance Zeiss Batis and Zeiss Loxia lenses plus Rokinon/Samyang and others. Fujifilm X, Olympus and Panasonic M4/3, Sigma dp Merrill and dp/sd Quattro are also covered in depth. Years in the making, it offers a wealth of material for choosing and using a mirrorless camera.
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(not to exact scale)
