The V1 has a low-res slow-mo option. It can shoot fast frame rates but not at full resolution. It records only to tape. When shooting slow-mo it has to buffer the footage into an internal memory cache, and then when you stop shooting it has to write the contents of that memory cache out to the tape so if you shoot, say, 10 seconds of footage, you then have to wait something like 40 seconds while it writes that footage out to the tape.
