This short, high-speed tele lens was specifically developed for challenging photography with SLR cameras. The Planar T* 1, 4/85 ZF.2 impresses with its bright, clear viewfinder image & guarantees brilliant image quality even at full aperture, making it the ideal tool for both indoor & outdoor portraits. The narrow depth of field at wide aperture permits visual silhouetting of the subject via the targeted use of background blurring. The special optical design & a diaphragm with nine blades & an almost circular geometry ensure excellent "bokeh" (aesthetic rendition of image areas out of the focus plane). Distortion is practically non-existent. The lens is almost distortion-free, making it ideal for high-quality, analog & digital documentation photos.