Brightin Star has launched a new ultra-wide fisheye prime lens for mirrorless cameras. The Brightin Star 7.5mm F2.8 IV lens is designed for cameras with an APS-C-sized sensor. It’s available for Sony E, Nikon Z, Fuji X, M43, Canon RF and Canon EOS-M mounts.
Compact body
With an all-aluminum body, the Brightin Star 7.5mm F2.8 IV prime lens weighs between 9.7 ounces (274 g) and 10.3 ounces (291 g) depending on which mount you need. It’s also compact, measuring 2.5-2.6 inches (64-67 mm) in diameter and 2.0-2.2 inches (52-56 mm) in length. A built-in petal-style lens hood protects the front element. It’s a fully manual lens, with rings for aperture and focus adjustment.
Optical design
The Brightin Star 7.5mm IV prime lens is built with 11 elements in eight groups. These include three high-refractive-index elements and three low-dispersion elements. Brightin Star says these effectively suppress chromatic aberration, distortion and flare. As a fisheye lens, you also get an ultra-wide 190-degree angle of view. The close focus distance is only 5.9 inches (150 mm).
Fast maximum aperture
The lens has a fast maximum aperture of F2.8. Combined with the short close focus distance, this should mean you can get a shallow depth of field for close-ups. The wide aperture also helps in low-light conditions. Five iris blades let you achieve a 10-point starburst effect with light sources such as streetlights when stopped down.
Rear filter
Fisheye lenses such as the Brightin Star 7.5mm IV feature a bulbous front element. As a result, you can’t use screw-in filters with them. This can be an issue when you need to use an ND filter for long exposures or to shoot wide open. To get around this, the lens accepts rear-mounted screw-in filters with a 27 mm thread.
What we think
Fisheye lenses aren’t the sort of glass you will be reaching for every day. However, their distorted perspective can create dramatic, eye-catching shots. With such a short close focusing distance, the Brightin Star 7.5mm IV opens up even more creative options. The fast F2.8 aperture and rear-filter compatibility add to the appeal. At this price, it’s a solid choice for anyone keen to try shooting with a fisheye lens.
Pricing and availability
The Brightin Star 7.5mm F2.8 IV prime lens is available now at a sale price of $139, down from the regular $159. You can choose between a black or silver body.
