Quick answer
The Laowa 4mm f/2.8 Fisheye MFT is a ultra-wide fisheye lens covering 4mm at f/2.8 for the Canon RF mount. Its bright maximum aperture handles indoor and evening light reasonably well.
About this lens
This 4mm f/2.8 fisheye lens from Laowa fits Canon RF mount cameras. It suits dramatic perspectives, astrophotography and creative wide-field work.
Laowa 4mm f/2.8 Fisheye MFT specifications
- Brand
- Laowa
- Mount
- Canon RF
- Focal length
- 4mm
- Maximum aperture
- f/2.8
- Lens type
- Fisheye
- Format coverage
- micro-four-thirds
- Optical construction
- 7 elements in 6 groups
- Aperture blades
- 7
- Autofocus motor
- none
- Minimum focus distance
- 0.08 m
- Maximum magnification
- 0.11x
Specification source: venuslens.com
What can you shoot with the Laowa 4mm f/2.8 Fisheye MFT?
At 4mm this is a ultra-wide fisheye, which typically suits:
- Landscapes and big skies
- Architecture and interiors
- Astrophotography and night skies
Its bright maximum aperture handles indoor and evening light reasonably well.
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 | 4mm | 154.9° | 159.1° |
| APS-C | 1.6x | 6.4mm | 140.9° | 147° |
Frequently asked questions
What mount does the Laowa 4mm f/2.8 Fisheye MFT use?
It uses the Canon RF mount, so it fits Canon RF cameras directly.
What is the focal length of the Laowa 4mm f/2.8 Fisheye MFT?
It is a fixed 4mm lens with a maximum aperture of f/2.8. That makes it a ultra-wide lens.
Is the Laowa 4mm f/2.8 Fisheye MFT a prime or a zoom lens?
It is a prime lens with a fixed 4mm focal length. Primes usually open wider than zooms; this one opens to f/2.8.
What is the Laowa 4mm f/2.8 Fisheye MFT equivalent on a crop sensor?
On APS-C (1.6x crop) it frames like 6.4mm on full frame, with a 140.9° horizontal and 147° diagonal field of view. These figures are calculated from the focal length and crop factor.
Which cameras does the Laowa 4mm f/2.8 Fisheye MFT fit?
Any Canon RF-mount camera, including Canon EOS R, Canon EOS R1, Canon EOS R10, Canon EOS R100, and Canon EOS R3 and 9 more.
