Fujifilm's breakthrough body with X-Trans 4 sensor, 4K 60fps, and sports-capable AF.
The Fujifilm X-T3 was announced in September 2018 as the third-generation X-T body, introducing the 26.1MP X-Trans CMOS 4 BSI sensor with on-sensor phase-detection and becoming the first mirrorless camera to record 4K/60fps internally to an SD card with 10-bit 4:2:0 output — a capability previously requiring an external recorder on all mirrorless cameras. 425-point hybrid phase-detection covers the full sensor for accurate continuous tracking. No in-body image stabilisation.
The 26.1MP APS-C X-Trans CMOS 4 BSI sensor incorporates 2.16 million on-sensor phase-detection points, providing 425-point hybrid AF coverage. Burst shooting runs at 11fps with mechanical shutter, 20fps with electronic shutter at full resolution, and 30fps with a 1.25x crop. 4K video records at up to 60fps in 10-bit 4:2:0 internally; 10-bit 4:2:2 is available via HDMI output. No IBIS. Battery life approximately 390 shots using the NP-W126S, body weight approximately 539g with battery and card, dual SD UHS-I/II slots.
The internal 4K/60fps 10-bit output was the X-T3's defining specification at launch: no competing mirrorless body could match 10-bit 4K/60p recording to an internal SD card. The BSI CMOS 4 sensor's phase-detection coverage enables continuous tracking across the full frame that the earlier contrast-only X-T2 could not match. The 20fps electronic shutter burst at full resolution covers sports and wildlife. No IBIS means handheld video stabilisation relies on lens OIS only.
On the used market the X-T3 is available at very affordable APS-C mirrorless prices as the X-T4/X-T5 have lowered its market position. Condition checks: 425-point PDAF response in tracking mode, dual SD slot contacts, NP-W126S battery health — shared with X-T2 and X-H1 — and screen condition. The X-T4 added IBIS at a modest premium. Compatible with all Fujifilm X-mount lenses.