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Canon RF-S 3.9mm f/3.5 STM Dual Fisheye

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Prime lens

A prime lens by Canon for APS-C cameras, 3.9mm f/3.5. A twin-lens 3D VR lens for APS-C bodies, with autofocus.

MakerCanon
Focal length3.9mm (prime)
Maximum aperturef/3.5
Made forAPS-C sensors
MountsCanon RF
Stabilisedno
Autofocusyes

What it frames like

14243550851352004008005.8mm equiv.3.9mm on APS-C
Its full-frame-equivalent focal length on the sensor it was made for.
APS-C (Canon) 6.2mm · 142°
How wide 3.9mm sees on each sensor it covers.
f/3.5
f/3.5 wide open, to scale against f/1.4.
  • On APS-C (Canon) (Canon RF): like 6.2mm on full frame; f/3.5 gives about the depth of field of f/5.6 there.
  • On the larger-sensor bodies of Canon RF: it works with the camera in a APS-C crop mode, at fewer megapixels.

Cameras it fits

Questions people ask

See what it frames: its view on the Canon EOS R50 V at any distance, and its depth of field, drawn to scale.