For the value, yes I would say it is a great lens. The best ever, have to disagree here. Don't get me wrong, it does me very well right now, but one of the reasons I will upgrading to MF is due to this lens. First, it's a heavy retro focal lens designed around a mirror box and is not as sharp as the comparable Schneider (which is more than twice the price of course). Also, there is a mild blue/green fringe on the edges of the wall and metal around the window, also a product of the retro design. This drives me insane when I am processing my images. Yes, it is a more common problem when something is back lit, but when shooting interiors their is always something back lit.