So I'm thinking about playing with the convertible aspect of my old Caltar S-series 8 1/2"-14". I've used this lens at 8 1/2, and I like it. I just tried some test shots at 14" with the front element removed and have some questions. First off - Is 14" practical for much? On my old Calumet 402 I found the bellows REALLY being pushed by this lens. I mean it is a 14" lens. With my two test shots, it seemed difficult to deal with simply because the bellows is way out there. Although I am thinking this could be a good portrait lens. Secondly - I wanted to use this for portraits because I could get, I hoped, a softer look once the front was taken off. And it does seem a bit softer. I was stopped down on my test shots, but when I open up I think I will get some real nice softness from this lens. Not "softar" soft, but softer. My concern is that with that front off, I have about an inch of shiny metal all around the lens all of a sudden. I'm thinking this means I will be entering flare city if I am not careful. Any hints on this? Thirdly - Since the bellows is out so far, how can I calculate my bellows compensation?