Tokina atx-i 11-20mm F/2.8 CF

The Tokina atx-i 11-20mm F/2.8 CF is an ultra-wide zoom for APS-C cameras. Tokina sells it in Nikon F and Canon EF versions, so pick the one made for your mount. Both versions share the same optical design. It launched in 2020 and remains in production.

That range suits anyone shooting interiors, architecture or wide landscapes. At 11mm you can frame a whole room from a corner, and at 20mm scenes look less stretched when you want a calmer view. The constant f/2.8 maximum aperture also keeps evening and night work practical. The main trade-off is the short feature set, which later sections cover.

It weighs 1 lb 4.1 oz (570 g) and runs 3.7 in (94 mm) long, with a 3.5 in (89 mm) body. At that weight it is easy to carry through a long interior shoot.

The 82mm front thread accepts standard screw-in filters, so a polariser or ND filter mounts directly.

On an APS-C sensor, 11–20mm is a true ultra-wide range. The 11mm end fits whole rooms or courtyard interiors into a frame when walls hem you in. The 20mm end still reads as wide, but it stretches buildings and faces at the edges less strongly.

The maximum aperture stays at f/2.8 through the whole zoom, so exposure stays predictable as you zoom. That helps in dim churches, showrooms and evening streets, where you can keep shutter speeds reasonable without pushing ISO. It suits night-sky work too. At 11mm, f/2.8 gathers starlight faster than a slower zoom would, so exposures can stay short enough to hold stars as points.

Closest focusing is 0.9 ft (28 cm) from the subject. That lets you place a foreground rock, plant or doorway close to the camera. Wide focal lengths then keep much of the scene sharp behind it. The nine blades keep the aperture round when you stop down, which shapes sunstars and highlights more cleanly.

This lens keeps its feature list short. There is no image stabilization, so any shake correction has to come from your camera or your technique. At 11–20mm the wide view hides small camera movement better than a telephoto would, but the lens itself adds nothing. For handheld shots, brace your elbows or rest the camera on a solid surface.

There is no weather sealing either, so keep rain and dust away from it on location. No zoom lock is fitted, so nothing holds the zoom ring at a chosen focal length. And there is no fluorine coating on the front element. The Nikon F version also skips internal focusing. The features score is 19/100.

The optical formula uses 14 elements in 12 groups, including aspherical elements. Those specially shaped surfaces help reduce distortion and spherical aberration, faults that wide lenses often struggle with. That correction matters when straight edges fill the frame, such as in architecture. No low-dispersion glass appears in the formula.

The construction score is 15/100.