Yup. I have one. Do you have the 6X6 mask too? The Trinar is a three element lens. It's pretty fuzzy wide open, covers 6X6 sharp at f8, but needs to be stopped down to f16 for the full 6X9 frame to sharpen up the corners. At f8, the centre is pretty sharp, which can give nice effects. The compur rapid shutter is a jewel. It's a good 6X9 folder. Have fun with it. You probably won't want to shoot it wide open so don't worry about the fungus on the edges of the lens.