I'm a firm convert to
DxO Optics Pro, which is a hugely valuable addition to any photog's kit. Why? Because it corrects lens distortion, chromatic aberration, edge softness, sharpness, vignetting, etc. - all the things that distinguish third party lenses from expensive Nikon/Canon originals. So the formula goes something like:
Sigma/Tokina/Tamron lens + DxO Optics Pro > Nikon/Canon lens
and
Sigma/Tokina/Tamron lens + DxO Optics Pro = Nikon/Canon lens + DxO Optics Pro
i.e. save your money and get BETTER results than the Nikon/Canon (or equal if you use DxO with the Nikon/Canon original)
Of particular relevance to aerial work, it has really easy-to-use geometry correction tools as well - for straightening the horizon, removing/reducing keystoning, etc.