Venus Laowa 4mm F2.8 Fisheye

Focal length: 4 mm
Aperture: f/2.8
Weight: 135 g
Filter diameter: –
Min. focus distance: 8 cm
Length: 25.5 mm

At a Glance

This fisheye for Nikon Z offers 4 mm on an APS-C sensor, equivalent to 6 mm on full frame. It gives a very wide view with curved lines. At f/2.8 and just 135 g it is compact, and focusing is manual. It can focus as close as 8 cm. It suits creative work, action and travel.

Good for

Creative
Action
Travel

Worth knowing

APS-C image circle: on full-frame cameras only usable in crop mode, at reduced resolution.
Fisheye projection: straight lines away from the center are rendered curved.

Derived from the manufacturer data, not from our own tests. How we check

Technical Specifications

Min. focal length: 4 mm
Max. focal length: 4 mm
Max. aperture (min. zoom): f/2.8
Max. aperture (max. zoom): f/2.8
Min. aperture: f/16
Elements: 7
Groups: 6
Weight: 135 g (0.3 lb)
Filter diameter: –
Min. focus distance: 8 cm (3.15 in)
Max. magnification: 1:9.1 (0.11×)
Length: 25.5 mm (1 in)
Diameter: 45.2 mm (1.78 in)

Manufacturer data: venuslens.net

Last checked: October 13, 2026 (against the manufacturer data) · How we check

Simulate depth of field and angle of view

Compare with other lenses

Which cameras does the Venus Laowa 4mm F2.8 Fisheye fit?

The Venus Laowa 4mm F2.8 Fisheye is designed for APS-C sensors. On APS-C Nikon Z cameras its field of view equals 6 mm in full-frame terms. Full-frame bodies use it in APS-C (crop) mode, recording only part of the sensor and fewer megapixels.

Nikon Z cameras

Full frame (in APS-C mode):: Nikon Z5IIC,Nikon ZR,Nikon Z5II,Nikon Z6III,Nikon Z8,Nikon Zf,Nikon Z9,Nikon Z5,Nikon Z6II,Nikon Z7II,Nikon Z6,Nikon Z7
APS-C:: Nikon Z50II,Nikon Z30,Nikon Z fc,Nikon Z50