High quality Sony lenses with PL mount (35mm, 50mm and 85mm, T2.0). T2.0 to C (close), Filter diameter 95mm. These are very fast and very sharp prime lens that produce great images. Though designed for Sony PMW-F3, PMW-F5 and PMW-F55, this lens could also be useful for any PL mount camera / camcorder such as Red and Arri. NOTE: There have been some reports on the web of the Sony PL lenses not working with cameras other than the Sony PL cameras. Sony stated that it seems to occur on a lens-by-lens / camera-by-camera basis; a lens may fit on one ARRI Alexa or RED, but not on another. Therefore I can't guarantee that they would fit on non-Sony PL camera (though it's very likely that they will). Now about the quality: the outer casing is a bit plasticy in comparison to a Zeiss CP2 but the glass is much sharper. The lightweight nature of these lenses is perfect in handheld applications. The optics are good and can be compared to Zeiss Super Speeds or Ultra Primes. There is little to no light falloff at the edges and resolution is even from corner to corner. Breathing is present but minimal. This lens certainly gets the job done. An objective of the design of these lenses (35, 50 and 85) was to create good quality lenses that weren’t too expensive. Sony focused on geometry; making sure that, edge to edge, the lenses have a minimum amount of barrel distortion and focus fall-off.