I have used one on 11X14 and it's about the same cross section. It's a wide field double gauss like the Kodak WF 250 Ektar and is a fine performer at infinity. I considered it too big. It's about the most impressive appearing lens I've ever seen. HUGE. Another plus is that in shutter it opens up to f6.3 for focus. It's only f11 in the barrel.