This lens comes in manual focus and auto focus flavors. I tested the autofocus version here and it’s currently only for sony’s e, mount mirrorless cameras, full frame or aps c it’s price seems to fluctuate a little bit, but you can find it for about seven or eight hundred us dollars or around six hundred pounds in the Uk, which is about what you’d expect for a good quality autofocus prime lens these days, the manual focus version of the lens costs, a little less as you’d expect it’s a lens that’s been generally well received, even winning the odd award or two so let’s put it Through its paces i’d, like to thank tokina for loaning me a copy of this lens for a few weeks, although, as usual, this is a totally independent review. 20 millimeter is one of my favorite focal lengths technically it’s an ultra wide angle, so it adds a bit of drama and a nice broad background to your images, useful for landscape photography, but it’s, not such a wide angle that it’s difficult to compose your pictures. It’S such a useful focal length uh, especially as i said, for landscape, but also for architecture photography. Its maximum matcher of f2 is nice and bright for astrophotography as well, and for getting slightly out of focus backgrounds. If you move in close enough to your subject, well, let’s check out its build quality. First, the lens is reasonably small, but very metallic and a little weighty at around 450 grams about a pound it’s based on a metal lens mount without any visible weather sealing the only control point on a lens is a manual focus ring which is also made of Metal and turns pretty smoothly.
It responds well with the lenses focus motor, although, as you can see here, a fair bit of focus breathing is visible. The image zooms out a bit as you focus more closely the autofocus motor works quite quickly and accurately, as he can see and makes a quiet wishing sound as it works. It takes a moment to fully lock onto your subject, but honestly, i think it’s, the best auto focus system i’ve, seen in a tokina lens. So far, the lens filter thread size is 62 millimeters in diameter and it comes with a small plastic hood. Overall, the lens is small and very well made you get the impression it will take. Quite a few knocks and it’s small enough to take wherever you go now on to image quality let’s start on a full frame camera. My 42 megapixel sony, a7r ii in camera. Corrections are turned on in the middle of the image. We see razor sharp picture quality with excellent contrast. The corners are softer with a little ghosting, but there’s still enough resolution there to be usable, f, 2.8 looks about the same at f4. We see dramatically more contrast, though, and a little more sharpness, f, 5.6 and f. 8 see further minuscule improvements, leading to very good corner image, quality as usual, stop down as far as f 16 or f 22, and the image gets softer due to the effect of diffraction overall it’s, a good performance from the lens on a full frame camera, although, If you want properly sharp corners, you will have to stop down to f4 or so now, let’s test the lens on an aps c camera my little 24 megapixel sony, a5100 sharpness in the middle remains excellent straight from f2.
The corners are still softer at that brightest. Aperture, though, however, stop down to f 2.8 and they sharpen up quite nicely and at f4 and f 5.6, they look excellent, so it’s a slightly better performance on an aps c camera the corner, image quality, looks a little sharper now so it’ll be a very good Choice for people shooting on cropped, sensor, cameras, let’s, have a look at distortion and vignetting on a full frame. Camera in camera corrections are turned off in these images. The lens projects just a little barrel distortion here and a slight mustache pattern, but nothing really noticeable in normal shooting vignetting is a little heavy at f2. Unsurprisingly, stop down to f 2.8 and those corners get a little brighter, but that’s as bright as they stay. Even if you stop the lens down further, so you should at least keep your corner. Shading compensation turned on here. This lenses. Minimum focus distance is 28 centimeters, not especially close to be fair, but the good news is that close up image quality remains as sharp as at normal distances. Even when shooting at f2 now let’s see how the lens works against bright lights generally, it does pretty well, there is some visible flaring, but not much it’s, pretty faint and while we’re working in the dark let’s take a quick look at coma levels. Here’S that star field picture at f2, we can see that the corner image quality is still a little soft, but we’re not really seeing coma smearing, so that’s a good result.
Finally, bokeh tokina’s wide angle: lenses are not generally known for the quality of their bokeh, but this one is okay, it’s, reasonably smooth in most situations, although with a little outlining occasionally so then, overall, this little 20 millimeter f2 lens is probably my favorite tokina optic that I have tested so far. It does almost everything well, its corner image. Quality could be a little bit sharper at the brightest apertures, but its build quality, autofocus system, excellent, central sharpness and good colors and contrast and low distortion all combined to make it a very nice performer and that’s, not to mention the fact that a 22 millimeter f2 Lens is pretty fun and useful to use in all kinds of situations, so this one definitely comes recommended. I hope you’ve enjoyed this review, found it helpful. I really enjoy putting them together if you’d like to support the channel and keep these reviews trucking on then take a look over on my patreon page for three dollars a month. You can get exclusive bonus content every month, so yeah check it out and take care.