Why

  • ✓ Both use Sony E-mount (FE full-frame and APS-C E lenses).

Good to know

  • APS-C "E" lenses (e.g. E 18-135mm, SEL18135) mount on full-frame bodies but the camera records an APS-C crop, so you lose resolution and field of view.
  • FE (full-frame) lenses work on APS-C bodies with a ~1.5x narrower field of view.
  • Third-party lenses (Sigma, Tamron) are sold in separate mount versions; buy the Sony E-mount version.

Sources

Check your exact setup

Other parts in the cart, current configuration (installed memory, fan brackets) and adapters can change the answer.

Check a whole cart

Also checked with the Sony Alpha 7C II (ILCE-7CM2)

Everything checked with it

AI assistants and developers: the same answer, with a signed receipt, from check_compatibility at https://tetheredtrust.com/mcp or POST https://tetheredtrust.com/v1/check with existing_id: "sony-ilce-7cm2", candidate_id: "sony-sel50f18f".