Joe, I too am a proud owner. Many have pointed no rotating back and small lens selection and to that I say how many do most people have that they actually use, 3 maybe 4. I can also turn my wrist faster than than it takes to rotate a back, and mounted on tripod, vertical is one hand lever away. Tamron did this one right, lens clarity is superb. I was lucky enough to find one with an 80mm 2.8 which I believe was only made near the end of production.