The Fujifilm X series of digital cameras consists of Fujifilm's high-end digital cameras and is aimed at professional and keen enthusiast photographers. It is part of the larger range of Fujifilm's digital cameras. The X series itself is not characterized by a single common sensor size or technology.
Fujifilm X10: Advanced compact with a 2⁄3 inch (17 mm) 12 megapixel (MP), and a high-definition f/2.0 wide-angle and f/2.8 telephoto Fujinon 4x manual zoom lens (28–112 mm). Introduced Fujifilm's EXR-CMOS sensor, a variation on the Bayer filter pattern. Announced September 1, 2011. Succeeded by Fujifilm X20.
Fujifilm X-S1: Advanced enthusiast's camera with the same 2⁄3 in 12 MP EXR-CMOS sensor as the X10 compact. It has a fixed 26X zoom providing range equivalent to 24–624 mm at f/2.8-5.6 aperture. Announced November 24, 2011.
Fujifilm X-E1: Mirrorless interchangeable-lens camera which is a slimmed-down version of X-Pro1. The modifications include removal of expensive hybrid finder replaced by an upgraded electronic viewfinder. New EVF uses a 2.36M dot OLED unit, out-speccing the X-Pro1's 1.44M dot LCD finder. It was announced on September 6, 2012.
Fujifilm XF1: Enthusiast's compact camera with 2⁄3 in EXR-CMOS sensor and Fujinon f/1.8 lens with a 4× optical zoom (25 mm–100 mm equivalent). It was announced on September 17, 2012.
Fujifilm X20: Replacement for the X10 enthusiast compact camera with 2⁄3 in X-Trans CMOS II sensor, EXR Processor II and a new advanced optical viewfinder. It was announced on January 7, 2013. Succeeded by Fujifilm X30.
Fujifilm X100S: Redesigned version of the X100 with new sensor-based phase detection, same sensor as Fujifilm X-E2. It was announced January 7, 2013. Introduced Fujifilm's Digital Split Image technology, allowing manual focus that appears to the user similar to a rangfinder camera's coincidence or split-image function.
Fujifilm X-A1: Lowest price interchangeable lens camera in the line-up, without X-Trans sensor, announced on September 17, 2013.
Fujifilm X-E2: Successor to the X-E1, with an X-Trans CMOS II sensor, larger 3 in (76 mm) screen with higher resolution (1.04 M), Digital Split Image technology, and wi-fi. Announced on October 18, 2013.
Fujifilm XQ1: Premium compact camera with X-Trans CMOS II sensor. Announced on October 18, 2013.
Fujifilm X-T1: Mirrorless interchangeable-lens camera with a weather-sealed body, X-Trans CMOS II sensor, and tilting LCD screen. Announced on January 27, 2014. Also the first X-series camera with an optional battery grip, and the first camera from any manufacturer to fully support UHS-II SD cards.
Fujifilm X30: Successor to the X20. Announced August 26, 2014.
Fujifilm X-T10: Mirrorless interchangeable-lens camera. Minor version of X-T1.
Fujifilm X-Pro2: Mirrorless interchangeable-lens camera, successor to the X-Pro1, with a new 24 MP X-Trans III sensor and higher resolution EVF. Announced January 15, 2016.
Fujifilm X-E2s: Mirrorless interchangeable-lens camera, minor update to the X-E2. Announced January 15, 2016.
Fujifilm X70: Smaller version of the Fujifilm X100T, with a 18.5 mm lens (28 mm-equivalent) rather than a 23 mm (35 mm-equivalent) on the X100/S/T. Announced January 15, 2016.
Fujifilm X-T2: Upgraded model from X-T1 with similar weather-sealed body but same sensor and image processor as X-Pro2. Announced July 7, 2016.
Fujifilm X-A3: Upgraded model from the X-A2, with 24.2 MP CMOS sensor, 11 types of film simulations, and rear LCD with touchscreen.
Fujifilm X-A10: Entry-model camera, detuned from X-A2. Without accessory shoe. Sells worldwide except Japan.
Fujifilm X100F: Successor to X100T. Equipped with the same sensor and processor as X-Pro2. Focus lever on the back of the body, built-in ISO dial on the top.
Fujifilm X-T20: Successor to X-T10. Same sensor and processor as X-T2. The tilt LCD on the back of the body becomes a touch panel; it also supports touch-autofocus and touch-shooting.
Fujifilm X-E3: Mirrorless interchangeable-lens camera, successor to X-E2s. Equipped with the same sensor and processor as X100F, X-Pro2, X-T2 and X-T20. The D-Pad has been replaced by swiping motions on the Touchscreen. Announced September 7, 2017.
Fujifilm X-A5: Successor to X-A3. Improved autofocus with new CMOS sensor and processor, new high dynamic range, and 4K movie shooting modes. New kit lens with XC 15 mm–45 mm f/3.5-5.3 OIS PZ. Sale began on 2018 February 15.
Fujifilm X-H1: Based on X-T2, newly equipped with In-Body Image Stabilizer (IBIS),10000 compute per second, stabilizing is effective with all genuine lenses. Sale began on 2018 March 1.
Fujifilm X-T100: Largely based on the X-A5 and is nearly identical to X-T20,  equipped with an electronic viewfinder, a fully articulating touchscreen (3-way tilt) and a hybrid autofocus. Announced 2018 May 24. Sale began on 18 June 2018.
Fujifilm XF10: Successor to X70, but equipped 24 megapixels bayer sensor same as X-A5 & X-T100. Announced on 2018 July 19, sale will begin on 2018 August 23.
Fujifilm X-T3: Announced September 6, 2018, sales will begin on September 20, 2018.
M-mount adaptor for using Leica M-mount lenses on X-mount cameras. Adapter provides a way to set the focal length of the lens which will appear in image Exif info, and correct for common color shift and vignetting problems when using M-mount lenses on digital cameras.