Soeren, I will add my voice to the chorus of approval for this lens. My example is bitingly sharp, particularly for 6x9 which I use it most for, but also for 5x4. It will not cover 5x7. Manufacturer's data can be found here It may be the sharpest 75 mm LF lens that Schneider has ever made—see Klayman's reply here Over my desk at work is a 20x24 inch print from a drum-scanned tranny made using this lens, and it is a good illustration of its qualities. However, I used quite a lot of front shift, which required the use of a centre filter. Depending on the sort of work you do, you may need one. They are not cheap!