Jeffcs wrote:
In reviewing above take a look at Tokina 11-16 they make 2 versions the ATX is sharper
The original poster is looking for an FX lens to use on their FX camera.
The Tokina 11-16mm is a DX lens, so isn't what they are looking for.
Plus, both Tokina ATX Pro 11-16mm and ATX Pro 11-16mm "II" use almost identical optics and render the same sharpness and image quality. The II has some changes to lens coatings, but the difference is imperceptible in images. The only significant difference between them in the Nikon mount is that the original 11-16mm is a "D-type" lens, without a built-in focusing motor... which means that lens can only autofocus on select Nikon cameras. The II version has an in-lens focusing motor, so is able to autofocus on additional Nikon cameras... such as the D3000-series and D5000-series, which don't have the in-camera focusing motor req'd by D-type lenses. (Note: There is almost no difference between the two versions in other mounts besides Nikon... In the other mounts offered, both versions have in-lens focus motors.)
Both versions of Tokina 11-16mm are "ATX Pro". And, in their day, both were the only ultrawide zooms for crop cameras with an f/2.8 max aperture. They also are both among the sharpest ultrawide zooms available. However, both are also very prone to problems with flare, which can often come into play when using lenses with such wide angle of view. They also have the narrowest range of focal lengths of any ultrawide zoom.
The Tokina 11-16mm were discontinued several years ago and superseded by the Tokina AT-X Pro 11-20mm f/2.8, which only comes in one version (which has a built-in focusing motor in all mounts). The new lens also solves some (but not all) of the flare problem and obviously offers a wider range of focal lengths. To my eye, the older 11-16mm appears slightly sharper at the widest setting, but when both lenses are zoomed to 13 and particularly to 16mm, the newer 11-20mm lens shows clear superiority.
All this is a moot point though, in this case, because the original poster is looking for an FX lens, and none of these Tokina fit the bill. They are all DX lenses.
Sigma offers a full frame capable 12-24mm and 14-24mm. Tamron has a similar 15-30mm. Tokina offers a 16-28mm FX. There are also some ultrawide, manual focus primes such as Rokinon/Samyang 14mm, Zeiss 15mm, Zeiss 18mm IRIX 11mm and IRIX 15mm. However, all these lenses have a protruding, convex front element, much like the Nikkor 14-24mm. So there's nothing to gain with any of them. They don't solve the original poster's problem with filters.
There are 16-35mm and 17-35mm lenses that can be used with standard, screw in filters. Those are about the widest able to do so. Both Nikon themselves and several third party manufacturers offer them. There also is a Venus Laowa 15mm f/4 Macro lens that can be used with 77mm filters. There are also Nikkor 20mm (AF) and Rokinon/Samyang 20mm (MF) that can use standard filters.
With any of these you might consider, look for reviews and info about images quality. The Nikkor 14-24mm is pretty hard to beat!