This lens has convinced me in all facets. Wide range of focal depth of infinity for panoramic landscapes to a few centimeters in fisheye lens Effekten.Die is thanks to the sun visor is well protected, so you do not accidentally too close is also used in close-ups and this is corrupt. The lens has no autofocus - so must be manually focused. Is a little heavy with the weight - which is still acceptable. Tested on a Canon 70D and am delighted with the quality of images and the handling.
