Canon Canon RF Prime

RF-S 7.8mm F4 STM Dual Lens VR

7mm
f/4.0
Prime
130 g
Min focus 0.15 m

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Quick answer

The Canon RF-S 7.8mm F4 STM Dual Lens VR is a ultra-wide prime lens covering 7mm at f/4.0 for the Canon RF mount. Its moderate maximum aperture works best in good light or with a higher ISO.

About this lens

Canon RF-S 7.8mm F4 STM Dual Lens VR: an APS-C wide-angle prime lens with a 7.8mm focal length and a maximum aperture of f/4, made for Canon RF mount cameras, with stepping-motor autofocus. The wide view suits landscapes, architecture and environmental shots.

Canon RF-S 7.8mm F4 STM Dual Lens VR specifications

Brand: Canon
Mount: Canon RF
Focal length: 7mm
Maximum aperture: f/4.0
Lens type: Prime
Released: 2024
Minimum focus distance: 0.15 m
Weight: 130 g
Length: 41.5 mm

Specification source: wikidata.org

What can you shoot with the Canon RF-S 7.8mm F4 STM Dual Lens VR?

At 7mm this is a ultra-wide prime, which typically suits:

Landscapes and big skies
Architecture and interiors
Astrophotography and night skies

Its moderate maximum aperture works best in good light or with a higher ISO.

Full-frame equivalent and field of view

Calculated from the focal length and crop factor. Not measured.

Sensor	Crop	Equivalent	Horizontal FOV	Diagonal FOV
Full frame	1.0x	7.8mm	133.1°	140.3°
APS-C	1.6x	12mm	110.5°	120°

Try the field-of-view calculator

Frequently asked questions

What mount does the Canon RF-S 7.8mm F4 STM Dual Lens VR use?

It uses the Canon RF mount, so it fits Canon RF cameras directly.

What is the focal length of the Canon RF-S 7.8mm F4 STM Dual Lens VR?

It is a fixed 7mm lens with a maximum aperture of f/4.0. That makes it a ultra-wide lens.

Is the Canon RF-S 7.8mm F4 STM Dual Lens VR a prime or a zoom lens?

It is a prime lens with a fixed 7mm focal length. Primes usually open wider than zooms; this one opens to f/4.0.

What is the Canon RF-S 7.8mm F4 STM Dual Lens VR equivalent on a crop sensor?

On APS-C (1.6x crop) it frames like 12mm on full frame, with a 110.5° horizontal and 120° diagonal field of view. These figures are calculated from the focal length and crop factor.