Looks like two strong and two faint. One also has a purple tint--looks coated. As far as aperature--f/44 is marked and measures 7mm. I can go past that and wind up with a 3.5mm aperature. What that works out to be=not sure. Will have to do some math. Much smaller that f/44 though-maybe f64 or 90. The haze doesn't seem to affect the image much at all. Or is it effect? My 8x10 Orbit never touched the outer reaches of coverage--even with crazy shifts and swings. I ran into bellow shadows but never the edge of the image.

Fun stuff using lens caps as shutters.
I posted a neg scan and crop in the gallery--take a look.

Matt