Capture Analog Hi8 video to DV50 and Kdenlive support

Happy new year; this is my first post regarding Kdenlive.

1. Any suggestions and experience regarding capture analog video from Hi8 PAL camcorder to DV50 PAL 4:2:2 color space (DVCPRO50)? Capture cards and capture tools that work doing this on Linux?

2. Does Kdenlive support editing DV50 4:2:2 ?