Tokina Super Wide Angle 16-50mm f/2.8 AT-X 165 PRO DX Autofocus Lens for Canon EOS

This is my main lens on the Canon 7D.Previously used a Sigma 24-70 on an XT.Very sharp. In practical use, the focus is nearly as fast as Canon USM with only a tiny amount of noise. However, in super dim conditions, and I mean super dim, the lens can't focus. In those conditions, I switch to the Canon 50 1.4, which the 7D can focus with in practically dark conditions.Great built quality. And while it doesn't necessarily show up in your files, the tactile quality of the lens makes it a joy to use. Somewhat heavy, but balances nicely on the 7D. There's some barrel distortion at 16mm though.The sharpness seems very consistent through the zoom and aperture range, unlike the Sigma 24-70, which was somewhat soft at 24mm.I also have the Tokina 11-16, which is great too, with distortion very well controlled at 16mm.UPDATE:I purchased this at about $550. I love it. But as the price nears the $1,000 mark, I'd look harder at the Canon lens.

Very nice lens, sharp images. It will works as my everyday use lens instead Canon 17- 85 mm

I sold my Canon 17-40 f/4 and Sigma 24-70 f/2.8 and got this lens. It's definitely better than the Sigma and is almost up there with the Canon when it comes to colors and sharpness. I got sick of carrying 2 lenses for different occasions. It's a bit wider than the usual "normal zooms" and is 2.8 all the way which is quite nice. Everyone keeps saying that the CA is large, I don't much care about that. You can correct CA. CA is only perceptible on sunny days when you would stop to f/5.6-f/11 anyways and the CA is small there. It's nice and heavy and I love how it feels. Plus it has a 77mm filter thread (unlike Tamron 17-50 f/2.8 which has the less common 67mm).Overall - I am very happy with it.

I have been using this for quite some time. It is a fantastic wide angle lens.Great for landscapes and other wide angle applications.

good price for an excellent lent

Most of the times I use a  Canon EF 24-105mm f/4 L IS USM Lens for Canon EOS SLR Cameras  as an all-round lens (mounted on an EOS 450 first, then EOS 7), and I was looking for a somewhat wider angle, but not too wide. I love  Tokina 11-16MM F/2.8 ATX 116 Lens for Canon EOS AF Digital - Tokina ATX116PRODXC , so I bought this one and so far I've been super happy about it. It's a fast lens at F 2.8 and performs well in poor lights conditions, solid, but not too heavy. Only keep in mind that, just like Canon's own EF-S lenses, it will not fit a full-sensor camera, like the EOS 5 or EOS 1.Other people out there may be instead looking for a replacement for the 17-55 lens sold together many Canon's cameras. Other good alternatives on the market would be  Sigma 18-50mm f/2.8-4.5 SLD Aspherical DC Optical Stabilized (OS) Lens with Hyper Sonic Motor (HSM) for Canon Digital SLR Cameras  and  Canon EF-S 17-55mm f/2.8 IS USM Lens for Canon DSLR Cameras . From what I've heard Sigma's lens is very good value for money, but it doesn't offers a fixed focal length. Canon's EF-S 17-55 got great reviews and has image stabilization too (that's a plus if you hand-hold a lot, like I do), but it's the most expensive among the three. I went with the Tokina mostly because I only wanted to fill the gap between my 11-16 and 24-105, the EF-S 17-55 is pretty expensive and I was positively impressed by Tokina in the past. Depending on your budget you may go with Sigma or Canon instead.

Ich verwende das Objektiv an einer Canon 600D und einem Metabones Speed Boost Adapter EF/MFT. Ich habe es gekauft, weil das Tamron 17-50, das ich hatte, sich nicht mit dem Speed Boost Adapter verträgt (der blockiert nach ca. 10 Minuten die Blende, die dann überhaupt nicht mehr reagiert, sprich, repariert werden muss).Das Objektiv ist mechanisch einfach ein Traum!! Aber bei der Bildqualität leidet es in bestimmten Situationen ziemlich stark an chromatischen Aberrationen (siehe Foto: das ist ein Ausschnitt aus einem Video-Still).Das Problem ist, dass ich in diesem Brennweitenbereich sonst nichts brauchbares und leistbares finde, aber ich werde dieses Objektiv trotzdem zurückschicken müssen, so leid es mir tut. Ich kann höchstens noch das Sigma 17-50 ausprobieren ... mal sehen ...