Compare cameras

Canon EOS-1D X Mark III vs Pentax K-1 Mark II

The Canon EOS-1D X Mark III and the Pentax K-1 Mark II side by side, computed from this guide's catalogue.

Which to pick

Pick the Canon EOS-1D X Mark III if you want a newer model (2020 against 2018), which usually means better autofocus and video and more lenses made for it in this guide (141 against 28). Pick the Pentax K-1 Mark II if you want more resolution, for cropping and big prints (36.4 against 20.1 MP) and stabilisation in the body, which steadies every lens. If you already own Canon EF or Pentax K lenses, the camera on that mount saves you buying them again.

Still torn? Ask the guide about the Canon EOS-1D X Mark III and the Pentax K-1 Mark II

Specs side by side

Rows that differ are in full colour; the better value is marked where one is better by any measure.
SpecCanon EOS-1D X Mark IIIPentax K-1 Mark II
MakerCanonPentax
MountCanon EFPentax K
SensorFull frame, 36 x 24 mmFull frame, 36 x 24 mm
Crop factor1×1×
Resolution20.1 MP36.4 MPmore detail
Stabilisationnonein the bodystabilised
Announced20202018
TypeDSLRDSLR
Weightnot listed1010 g
Lenses in this guide141 for its sensormore lenses28 for its sensor, 40 more with a crop

Sensor size

Both camerasFull frame36 × 24 mmCrop factor 1×
Both sensors drawn to the same scale.

Crop factors: Canon EOS-1D X Mark III 1×, Pentax K-1 Mark II 1×.

What a 50mm frames like

Both have the same sensor size, so a 50mm lens frames the same on each: like 50mm on full frame.

50mm on either · 40°
Horizontal angle of view on each.

Lenses

Different mounts (Canon EF and Pentax K): a lens for one does not fit the other without an adapter. 11 lens designs in this guide are made in both mounts, mostly from third-party makers.

The Canon EOS-1D X Mark III: 141 Canon EF lenses in this guide cover its sensor. The Pentax K-1 Mark II: 28 Pentax K lenses in this guide cover its sensor.

On their own pages