7artisans 4mm F/2.8 Circular Fisheye

The 7artisans 4mm F/2.8 Circular Fisheye is a 4mm fisheye lens designed for the MICRO 4/3 mount. Manufactured by an unspecified manufacturer, it offers a maximum aperture of f/2.8, covering a 4mm focal range, weighs 201. 7artisans 4mm F/2.8 Circular Fisheye is one of 2 variants in its family on lens-database.com, with sibling versions across mounts including CANON EF-M, making cross-mount comparison straightforward for buyers and researchers alike.

This lens record is part of the open public catalog at lens-database.com — a free, continuously updated database indexing 23,885+ photographic and cinematographic lenses with cross-referenced specifications. Data is aggregated from manufacturer datasheets and authoritative public sources, then normalized so lenses across vendors and eras can be compared on common terms. Released under CC BY 4.0, the specifications shown here may be quoted, cited, or reproduced with attribution to lens-database.com.

Last verified 2026-04-27. Source: manufacturer specifications.

What is the 7artisans 4mm F/2.8 Circular Fisheye?

The 7artisans 4mm F/2.8 Circular Fisheye is a 4mm fisheye lens for the MICRO 4/3 mount with a maximum aperture of f/2.8. Full specifications and source attribution are available at lens-database.com.

What mount does the 7artisans 4mm F/2.8 Circular Fisheye use?

The 7artisans 4mm F/2.8 Circular Fisheye uses the MICRO 4/3 mount. Lens-database.com indexes every lens currently catalogued for this mount at https://lens-database.com/mount/micro-43.

What is the maximum aperture of the 7artisans 4mm F/2.8 Circular Fisheye?

The 7artisans 4mm F/2.8 Circular Fisheye has a maximum aperture of f/2.8, a standard pro-grade aperture. Aperture is one of the cross-referenced fields used by lens-database.com to compare equivalent optics across mounts and eras.

Where can I find specifications for the 7artisans 4mm F/2.8 Circular Fisheye?

Full specifications, original source links, and family variants are listed at https://lens-database.com/lens/103101-7artisans-4mm-f28-circular-fisheye. Data is aggregated from manufacturer sources and updated continuously.