Designed for use with full frame digital SLR cameras. Produces striking images with exaggerated perspective of near subjects and extreme barrel distortion of the surrounding areas Super Multi-Layer lens coating reduces flare & ghosting & assures high image quality throughout the entire zoom range The minimum focusing distance of 5.3 inches & a magnification ratio of 1 to 4.6 allows subjects to be as close as of an inch from the lens' front element Supplied with a gelatin filter holder at the rear for easy addition of color correction filters A front cap adapter, front/rear lens cap and carrying case are included with the lensSpecifications