No scratches, dust, fungus or haze.

Although the technical sheet is vague about compatibility, I've been using it with Olympus EM-10 II, E-PM1 and Lumix GF1 and GF2. It didn't work on me E-PL1 even with latest firmware. Based on my experience using it i would guess it will be compatível with all GF line and with pen line at least from 3rd generation (E-PM1, E-PL3, E-P3). For video, it worked on all those câmeras but won't be ideal for cameras such as Gf2 that have no control over video settings and that automaticly keep changing aperture during recording, as aperture movement is a bit loud and can be heard on background in the videos.