Hooray for me, right? Here's my question. I used one back in the late 1970s quite extensively. The lens I just purchased is much larger than what I remember. Now the type on the barrel is mostly rubbed off. I can see enough of the remains to know that it's definitely a schneider lens and the shape is similar to the 90 SA but of course much more massive. The thing is that I don't remember the front elements having such a funnel shape. This has more of the shape of the 165 SA that I rented once. Was there more than one style of this lens as it evolved? Does anyone who has one know the dimensions of the front and rear elementS? Mine are 5.5" diameter on the front and 5" on the rear element. I do have a serial number if there's some place I can check......Any help would be greatly appreciated.