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Canon EOS-1D X Mark III lens compatibility

Canon EOS-1D X Mark III: verified mount, sensor format and lens selection caveats.

Reviewed by LensMatch editorial · 2026-10-30

Canon EOS-1D X Mark III is identified in the maker source with Canon EF and Full frame format. The maker source identifies this body and mount. Detailed lens functions require an exact maker compatibility table.

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Verified specifications

FieldValue
Lens mountCanon EF
Sensor formatFull frame
Model identitycanon-eos-1d-x-mark-iii
Sensor dimensions35.9 × 23.9 mm
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Match the exact lens mount and model designation. No exact LensMatch lens-pair verdict has been approved for this body. A matching mount label is not a full feature test. Adapter support, cropped recording area and advanced shooting functions are assessed for a specific combination, not inferred from this body’s mount alone.

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Official sources and scope

Checked for this reference on October 30, 2026. Product firmware and support lists can change; inspect the current maker page for your exact revision.