Sharp, almost to the edge of the field of view, little or no CA, very good depth of field, neutral colours. Good build quality, lightweight, BaK4 prisms, multi coated, waterproof (nitrogen purged). I am so impressed with these roof prism binoculars, at £58 they must be the best bang for buck roof prism binoculars out there, putting binoculars two to three times the price to shame.