7artisans Sony E mount Ultra-wide prime
7artisans 4mm f/2.8
Quick answer
The 7artisans 4mm f/2.8 is a ultra-wide prime lens covering 4mm at f/2.8 for the Sony E mount. Its bright maximum aperture handles indoor and evening light reasonably well.
- Full frame
- APS-C (6mm equiv.)
- 52 Sony E cameras
- Focal
- 4mm
- Aperture
- f/2.8
- Min focus
- 0.09m
- AF motor
- None
What 4mm sees
- Full frame crop 1.0×
- 159.1° 154.9° horizontal
- APS-C crop 1.5× → 6mm
- 149° 143.1° horizontal
Diagonal angle of view. Frames drawn to scale at 4mm. Calculated from the focal length and crop factor, not measured.
Open the field-of-view calculator7artisans 4mm f/2.8 specifications
Optics
- Focal length
- 4mm
- Maximum aperture
- f/2.8
Focus
- Autofocus motor
- None
- Minimum focus distance
- 0.09 m
Specification source: 7artisans.store
What can you shoot with the 7artisans 4mm f/2.8?
At 4mm this is a ultra-wide prime, 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.
Frequently asked questions
What mount does the 7artisans 4mm f/2.8 use?
It uses the Sony E mount, so it fits Sony E cameras directly.
What is the focal length of the 7artisans 4mm f/2.8?
It is a fixed 4mm lens with a maximum aperture of f/2.8. That makes it a ultra-wide lens.
Is the 7artisans 4mm f/2.8 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 7artisans 4mm f/2.8 equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 6mm on full frame, with a 143.1° horizontal and 149° diagonal field of view. These figures are calculated from the focal length and crop factor.
Which cameras does the 7artisans 4mm f/2.8 fit?
Any Sony E-mount camera, including Sony A1, Sony A3000, Sony A5000, Sony A5100, and Sony A6000 and 47 more.
Alternatives for Sony E from other brands
All Sony E lensesSame mount, overlapping focal range, closest maximum aperture first.
