Canon's last APS-C DSLR — Dual Pixel AF, 4K 25p, articulating touchscreen, optical viewfinder.
The Canon EOS 850D (marketed as the Rebel T8i in North America) was released in April 2020 as the entry-mid APS-C DSLR update, featuring Dual Pixel CMOS AF across the full Live View area for improved continuous tracking and 4K video capability. 4K records at 23.98/25fps but applies a significant additional crop — approximately 1.56x beyond the standard 1.6x APS-C crop factor, producing a very narrow field of view — making 4K practical primarily in situations where a telephoto perspective is acceptable. 1080p/60fps records from the full APS-C sensor without additional crop.
The 24.1MP APS-C CMOS sensor incorporates Dual Pixel CMOS AF with DIGIC 8 processing. Burst shooting runs at 7.5fps. 4K video records at 23.98/25fps from approximately 64% of the APS-C frame — a significant additional crop beyond the standard APS-C field; 1080p records at up to 60fps from the full sensor. The pentamirror OVF provides 95% coverage. No weather sealing. Battery life approximately 1,240 shots via OVF using the LP-E17, body weight approximately 515g with battery and card, single SD/SDHC/SDXC slot.
The DPAF continuous tracking in Live View is the 850D's practical improvement over the 800D for video and subject tracking in LCD-based shooting — the same DPAF system that makes Canon's mirrorless bodies competitive applies here in Live View mode. For photographers who shoot primarily in the OVF, the 9-point viewfinder AF remains the entry-tier standard. The 4K crop effectively makes the 850D a 1080p camera in most real-world shooting scenarios.
On the used market the 850D is affordable as an entry Canon APS-C DSLR with DPAF. Condition checks: DPAF performance in Live View tracking, shutter count via EXIF, LP-E17 battery health — shared with EOS M50, M5, RP, R50, R100 — and single SD slot. The LP-E17 is widely available. Canon EOS R50 provides similar DPAF in a mirrorless body. Compatible with all Canon EF and EF-S lenses.