Tokina FiRIN 100mm F/2.8 FE Macro

The FiRIN 100mm F/2.8 FE Macro is a prime for Sony E full-frame cameras. Its 1x maximum magnification makes it a true life-size macro rather than a close-focus lens. It suits flowers, insects, product shots and other small subjects.

Tokina introduced the lens in 2019, and it remains in production today. At ordinary distances the 100mm focal length also works for portraits and detail shots, so one lens covers two kinds of work.

The trade-off sits in the feature set. There is no stabilisation and no weather sealing, so steady support and careful handling matter when you work outdoors or in low light. Buyers who shoot mostly from a tripod give up little here.

The lens weighs 1 lb 4.1 oz (570 g) and measures 4.84 in (123 mm) long and 2.91 in (74 mm) wide. Those are manageable figures for a full-frame macro, so the lens travels easily enough. Screw-in filters attach directly and must match the 55mm thread, a size that keeps filters modest.

On a full-frame sensor, 100mm is a comfortable macro focal length. It lets you fill the frame with a small subject while keeping some distance, which matters for insects and other easily startled subjects. You also keep your shadow and the camera off the light falling on the subject.

Maximum magnification reaches 1x, so a subject is recorded on the sensor at its actual size. Fine texture and small structure carry into the frame at that scale. The closest focusing distance is 1 ft (30 cm).

Depth of field is the central challenge. At life size it becomes razor thin, and stopping down only partly widens it. Expect careful focus placement and small apertures for close-up frames. Focus stacking is the usual answer when you need more of a subject sharp.

At ordinary distances the f/2.8 maximum aperture helps in modest light and separates a portrait subject from a busy background. The nine-blade aperture keeps the opening round as you stop down, which helps out-of-focus highlights stay smooth. Our optics score for this lens is 82.

The lens has no image stabilisation. At 100mm, and even more near life-size magnification, small camera movements show clearly in the frame. A tripod or another firm support is the practical route to sharp close-ups.

There is no weather sealing, so keep the lens away from rain, spray and heavy dust. That matters if you shoot damp gardens or dusty trails. The front element also has no fluorine coating, so expect ordinary cleaning care.

None of these gaps stops good work; each just asks for a little planning. The features score for this lens is 19.

The optical formula is straightforward: nine elements in eight groups, with no aspherical or low-dispersion glass listed. That is a simple layout for a 100mm macro. The counts describe the design; they do not measure its sharpness.