Fujifilm X
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Fujifilm's APS-C mount: every X body has the same sensor size, so every X lens frames the same on every body.
Sigma, Tamron, Viltrox, Samyang and others make autofocus X-mount lenses.
Cameras
Fujifilm X-E5
Fujifilm X-T30 III
Fujifilm X-M5
Fujifilm X-T50
Fujifilm X-S20
Fujifilm X-H2
Fujifilm X-H2S
Fujifilm X-T5
Fujifilm X-E4
Fujifilm X-T30 II
Fujifilm X-S10
Fujifilm X-T200
Fujifilm X-T4
Fujifilm X-A7
Fujifilm X-Pro3
Fujifilm X-T30
Fujifilm X-A5
Fujifilm X-H1
Fujifilm X-T100
Fujifilm X-T3
Fujifilm X-E3
Fujifilm X-T20
Fujifilm X-A3
Fujifilm X-E2S
Fujifilm X-Pro2
Fujifilm X-T2
Fujifilm X-T10
Fujifilm X-T1
Fujifilm X-E2
Fujifilm X-E1
Fujifilm X-Pro1
Lenses
Sigma 100-400mm f/5-6.3 DG DN OS Contemporary
Tamron 150-500mm f/5-6.7 Di III VC VXD
Laowa Aksen 17.5mm f/1.7 5-10X Ultra Macro APO
Viltrox AF 28mm f/4.5
Sirui Aurora 35mm f/1.4
Laowa Aksen 45mm f/2.8 1-5X Ultra Macro APO
TTArtisan 50mm f/2
TTArtisan Tilt 50mm f/1.4
Meike 55mm f/1.8 Pro
TTArtisan AF 75mm f/2
Meike 85mm f/1.8 Pro
Meike 85mm f/1.8 STM
Sirui Aurora 85mm f/1.4
Viltrox AF 85mm f/1.8 II
TTArtisan 100mm f/2.8 2X Macro
TTArtisan 500mm f/6.3
Fujifilm XF 8-16mm f/2.8 R LM WRlike 12-24mm
Laowa 8-16mm f/3.5-5 Zoom CFlike 12-24mm
Sigma 10-18mm f/2.8 DC DN Contemporarylike 15-27mm
Fujifilm XF 10-24mm f/4 R OIS WRlike 15-36mm
Tokina atx-m 11-18mm f/2.8like 16-27mm
Tamron 11-20mm f/2.8 Di III-A RXDlike 16-30mm
Fujifilm XC 13-33mm f/3.5-6.3 OISlike 20-50mm
Fujifilm XC 15-45mm f/3.5-5.6 OIS PZlike 22-68mm
Fujifilm XC 16-50mm f/3.5-5.6 OIS IIlike 24-75mm
Fujifilm XF 16-50mm f/2.8-4.8 R LM WRlike 24-75mm
Tamron 16-50mm f/2.8 Alike 24-75mm
Fujifilm XF 16-55mm f/2.8 R LM WRlike 24-82mm
Fujifilm XF 16-55mm f/2.8 R LM WR IIlike 24-82mm
Fujifilm XF 16-80mm f/4 R OIS WRlike 24-120mm
Sigma 16-300mm f/3.5-6.7 DC OS Contemporarylike 24-450mm
Sigma 17-40mm f/1.8 DC Artlike 26-60mm
Tamron 17-70mm f/2.8 Di III-A VC RXDlike 26-105mm
Sigma 18-50mm f/2.8 DC DN Contemporarylike 27-75mm
Fujifilm MKX 18-55mm T2.9like 27-82mm
Fujifilm XF 18-55mm f/2.8-4 R LM OISlike 27-82mm
Fujifilm XF 18-120mm f/4 LM PZ WRlike 27-180mm
Fujifilm XF 18-135mm f/3.5-5.6 R LM OIS WRlike 27-202mm
Tamron 18-300mm f/3.5-6.3 Di III-A VC VXDlike 27-450mm
Sigma 50-120mm f/2.8 DC OS Contemporarylike 75-180mm
Fujifilm MKX 50-135mm T2.9like 75-202mm
Fujifilm XF 50-140mm f/2.8 R LM OIS WRlike 75-210mm
Fujifilm XC 50-230mm f/4.5-6.7 OIS IIlike 75-345mm
Fujifilm XF 55-200mm f/3.5-4.8 R LM OISlike 82-300mm
Fujifilm XF 70-300mm f/4-5.6 R LM OIS WRlike 105-450mm
Fujifilm XF 100-400mm f/4.5-5.6 R LM OIS WRlike 150-600mm
Fujifilm XF 150-600mm f/5.6-8 R LM OIS WRlike 225-900mm
7Artisans 4mm f/2.8 Fisheyelike 6mm
7Artisans 6mm f/2like 9mm
7Artisans 7.5mm f/2.8 Fisheye IIlike 11mm
TTArtisan 7.5mm f/2 Fisheyelike 11mm
Fujifilm XF 8mm f/3.5 R WRlike 12mm
Laowa 9mm f/2.8 Zero-Dlike 14mm
Viltrox AF 9mm f/2.8 Airlike 14mm
7Artisans 10mm f/3.5like 15mm
7Artisans AF 10mm f/2.8like 15mm
Laowa 10mm f/4 Cookielike 15mm
TTArtisan 10mm f/2 ASPHlike 15mm
7Artisans 12mm f/2.8 IIlike 18mm
Samyang AF 12mm f/2like 18mm
Sigma 12mm f/1.4 DC Contemporarylike 18mm
Zeiss Touit 12mm f/2.8like 18mm
Viltrox AF 13mm f/1.4like 20mm
Fujifilm XF 14mm f/2.8 Rlike 21mm
TTArtisan AF 14mm f/3.5like 21mm
Sigma 15mm f/1.4 DC Contemporarylike 22mm
Viltrox AF 15mm f/1.7 Airlike 22mm
Fujifilm XF 16mm f/1.4 R WRlike 24mm
Fujifilm XF 16mm f/2.8 R WRlike 24mm
Sigma 16mm f/1.4 DC DN Contemporarylike 24mm
Sirui Sniper 16mm f/1.2like 24mm
TTArtisan 17mm f/1.4like 26mm
TTArtisan AF 17mm f/1.8 Airlike 26mm
7Artisans 18mm f/6.3 IIlike 27mm
Fujifilm XF 18mm f/1.4 R LM WRlike 27mm
Fujifilm XF 18mm f/2 Rlike 27mm
Voigtländer Color-Skopar 18mm f/2.8 Asphericallike 27mm
Fujifilm XF 23mm f/1.4 Rlike 34mm
Fujifilm XF 23mm f/1.4 R LM WRlike 34mm
Fujifilm XF 23mm f/2 R WRlike 34mm
Fujifilm XF 23mm f/2.8 R WRlike 34mm
Sigma 23mm f/1.4 DC DN Contemporarylike 34mm
Sirui Sniper 23mm f/1.2like 34mm
TTArtisan 23mm f/1.4like 34mm
TTArtisan AF 23mm f/1.8like 34mm
Tokina atx-m 23mm f/1.4like 34mm
Viltrox AF 23mm f/1.4like 34mm
Voigtländer Nokton 23mm f/1.2 Asphericallike 34mm
7Artisans 25mm f/0.95like 38mm
7Artisans 25mm f/1.8like 38mm
7Artisans AF 25mm f/1.8like 38mm
Laowa Argus 25mm f/0.95 CF APOlike 38mm
Meike 25mm f/1.7 Airlike 38mm
TTArtisan 25mm f/2like 38mm
Viltrox AF 25mm f/1.7 Airlike 38mm
7Artisans AF 27mm f/2.8like 40mm
Fujifilm XF 27mm f/2.8 R WRlike 40mm
TTArtisan AF 27mm f/2.8like 40mm
Viltrox AF 27mm f/1.2 Prolike 40mm
Voigtländer Ultron 27mm f/2like 40mm
Fujifilm XF 30mm f/2.8 R LM WR Macrolike 45mm
Sigma 30mm f/1.4 DC DN Contemporarylike 45mm
Zeiss Touit 32mm f/1.8like 48mm
Fujifilm XF 33mm f/1.4 R LM WRlike 50mm
Laowa Argus 33mm f/0.95 CF APOlike 50mm
Meike 33mm f/1.4 STMlike 50mm
Sirui Sniper 33mm f/1.2like 50mm
Tokina atx-m 33mm f/1.4like 50mm
Viltrox AF 33mm f/1.4like 50mm
7Artisans AF 35mm f/1.4like 52mm
7Artisans 35mm f/0.95like 52mm
7Artisans 35mm f/1.2 IIlike 52mm
7Artisans 35mm f/1.4like 52mm
7Artisans AF 35mm f/1.8 APS-Clike 52mm
Fujifilm XC 35mm f/2like 52mm
Fujifilm XF 35mm f/1.4 Rlike 52mm
Fujifilm XF 35mm f/2 R WRlike 52mm
TTArtisan 35mm f/0.95like 52mm
TTArtisan 35mm f/1.4like 52mm
TTArtisan AF 35mm f/1.8like 52mm
TTArtisan AF 35mm f/1.8 IIlike 52mm
TTArtisan Tilt 35mm f/1.4like 52mm
Viltrox AF 35mm f/1.7 Airlike 52mm
Voigtländer Nokton 35mm f/0.9 Asphericallike 52mm
Voigtländer Macro APO-Ultron 35mm f/2like 52mm
Voigtländer Nokton 35mm f/1.2like 52mm
TTArtisan 40mm f/2.8 Macrolike 60mm
7Artisans 50mm f/0.95like 75mm
7Artisans 50mm f/1.2like 75mm
7Artisans 50mm f/1.4 Tilt-Shiftlike 75mm
7Artisans 50mm f/1.8like 75mm
7Artisans AF 50mm f/1.8 APS-Clike 75mm
Fujifilm XF 50mm f/1.0 R WRlike 75mm
Fujifilm XF 50mm f/2 R WRlike 75mm
TTArtisan 50mm f/0.95like 75mm
TTArtisan 50mm f/1.2like 75mm
Voigtländer Nokton 50mm f/1.2like 75mm
Yongnuo YN50mm f/1.8 DA DSMlike 75mm
Zeiss Touit 50mm f/2.8 Macrolike 75mm
7Artisans 55mm f/1.4like 82mm
Meike 55mm f/1.4 STMlike 82mm
Fujifilm XF 56mm f/1.2 Rlike 84mm
Fujifilm XF 56mm f/1.2 R APDlike 84mm
Fujifilm XF 56mm f/1.2 R WRlike 84mm
Meike 56mm f/1.7 Airlike 84mm
Sigma 56mm f/1.4 DC DN Contemporarylike 84mm
Sirui Sniper 56mm f/1.2like 84mm
TTArtisan AF 56mm f/1.8like 84mm
Tokina atx-m 56mm f/1.4like 84mm
Viltrox AF 56mm f/1.2 Prolike 84mm
Viltrox AF 56mm f/1.4like 84mm
Viltrox AF 56mm f/1.7 Airlike 84mm
7Artisans 60mm f/2.8 Macro IIlike 90mm
Fujifilm XF 60mm f/2.4 R Macrolike 90mm
Laowa 65mm f/2.8 2X Ultra Macro APOlike 98mm
Sirui Sniper 75mm f/1.2like 112mm
Viltrox AF 75mm f/1.2 Prolike 112mm
Viltrox AF 75mm f/1.8 EVOlike 112mm
Fujifilm XF 80mm f/2.8 R LM OIS WR Macrolike 120mm
Fujifilm XF 90mm f/2 R LM WRlike 135mm
Viltrox AF 90mm f/2.2 EVOlike 135mm
Fujifilm XF 200mm f/2 R LM OIS WRlike 300mm
Fujifilm XF 400mm f/4.5 R LM OIS WRlike 600mm
Fujifilm XF 500mm f/5.6 R LM OIS WRlike 750mm