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Canon RF-S 7.8mm f/4 STM Dual

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Prime lens

A prime lens by Canon for APS-C cameras, 7.8mm f/4. A twin lens for recording spatial video, made for the R7.

MakerCanon
Focal length7.8mm (prime)
Maximum aperturef/4
Made forAPS-C sensors
MountsCanon RF
Stabilisedno
Autofocusyes

What it frames like

142435508513520040080012mm equiv.7.8mm on APS-C
Its full-frame-equivalent focal length on the sensor it was made for.
APS-C (Canon) 12mm · 111°
How wide 7.8mm sees on each sensor it covers.
f/4
f/4 wide open, to scale against f/1.4.
  • On APS-C (Canon) (Canon RF): like 12mm on full frame; f/4 gives about the depth of field of f/6.4 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

Compare with

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