But you have to understand that you don't ever get "stereo" when you're recording with a single mic going into one input. It's really just one mono track duplicated across two channels. Depending on the setting on the camera, the Oktava can do this. Real stereo requires two mics.
Echoing Huy - it's a mono mic. Stereo requires 2 of them, properly positioned with respect to each other. Simply putting up 2 mics without regard for their orientation with respect to each other will result in dual-mono, two different tracks but not really producing a stereo image when played back together. Your choice of stereo or mono needs to be driven by the material you're recording. Dialog? Go mono. Music? Usually stereo. Ambience? Often stereo.
