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Adapter compatibility · Various (Tamron-originated standard) → Canon

T-mount to Canon EF adapter compatibility

Mounting a T-mount (T2) lens on a Canon EF body — the feasibility verdict, AF / IS / aperture-control / infinity-focus outcome, image-circle relationship, official and reputable third-party adapter SKUs, and the caveats worth knowing before you buy.

Verdict at a glance

Mechanical
MFno ISAp. ring

Mount specs

Lens side

T-mount (T2)

Flange distance
55 mm
Protocol
Mechanical only
Type
legacy-SLR

Body side

Canon EF

Flange distance
44 mm
Protocol
Canon EF
Type
DSLR

Flange-distance gap the adapter fills: 11.00 mm (55 mm − 44 mm). That gap is what a mechanical adapter has to fill to hold the lens at its design distance from the sensor.

Flange-distance schematic. Two rails share a sensor plane on the right. The Canon EF body register measures 44 millimetres; the T-mount lens needs 55 millimetres. The orange region between their left edges is the 11.00 millimetre gap an adapter spans.Sensor planeCanon EF body · 44 mmT-mount lens · 55 mm+11.00 mm adapter
Both distances right-aligned to the sensor. The 11.00 mm gap between the Canon EF body register and the T-mount lens (orange) is exactly what a mechanical adapter fills to hold the lens at its design distance.

Adapter examples

  • generic mechanical adapter ring (multiple vendors)

Caveats

  • Mechanical adapter only — no electronic communication between T-mount (T2) lens and Canon EF body.

Common questions

Will T-mount (T2) lenses autofocus on a Canon EF body through an adapter?
Autofocus is not applicable to this pairing — the T-mount mount predates electronic AF, or the bodies in this family do not implement AF for adapted lenses.
Does in-lens image stabilization (IS / VR / OS) still work through a T-mount → Canon EF adapter?
Stabilisation is not applicable — T-mount lenses in this family do not ship with in-lens stabilisation, or the adapter pair predates the IS protocol entirely.
What's the most-recommended T-mount → Canon EF adapter?
No SKU in our curated catalogue covers T-mount → Canon EF yet. Adapter examples photographers commonly use include the generic mechanical adapter ring (multiple vendors). Pair compatibility is mostly mechanical, so any well-built adapter at the correct flange distance should work — pick on build quality and tripod-foot integration.

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