Upgrade guide · updated 5 November 2026

Should I upgrade from the Canon EOS-1D X Mark II to the Canon EOS-1D X Mark III?

Verdict

Upgrading is likely worth it. Both use the Canon EF / EF-S mount, so your lenses fit directly.

What you gain

  • faster bursts (16fps vs 14fps)
  • better video (5.5K RAW / 4K 60p vs 4K 60p)
  • a lighter body (1440g vs 1530g)
  • 4 years of newer processing and autofocus (2016 → 2020)

What you give up

  • lower resolution (20.1MP vs 20.2MP)

What it costs

EOS-1D X Mark III new£6,999
EOS-1D X Mark III used (MPB, typical)£1,710
Your EOS-1D X Mark II trade-in (rough estimate)≈ £450
Net cost buying used≈ £1,260

Trade-in estimates assume about two-thirds of the typical MPB resale price; real offers vary with condition and shutter count.

Other upgrade paths

Frequently asked questions

Should I upgrade from the Canon EOS-1D X Mark II to the Canon EOS-1D X Mark III?

The upgrade is likely worth it. You gain faster bursts (16fps vs 14fps), better video (5.5K RAW / 4K 60p vs 4K 60p), a lighter body (1440g vs 1530g), 4 years of newer processing and autofocus (2016 → 2020), but you lose lower resolution (20.1MP vs 20.2MP).

How much does it cost to upgrade from the EOS-1D X Mark II to the EOS-1D X Mark III?

The EOS-1D X Mark III costs £6,999 new and about £1,710 used at MPB. Trading in a used EOS-1D X Mark II might bring roughly £450, so the net cost is around £1,260 buying used (a rough estimate: get quotes from MPB, Wex and Park Cameras).

Will my EOS-1D X Mark II lenses work on the EOS-1D X Mark III?

Both use the Canon EF / EF-S mount, so your lenses fit directly.