You asked
Is the pentax hd da 560mm f 5 6 ed aw good for video?
The site doesn't say how this lens performs for video. The Pentax HD DA 560mm f/5.6 ED AW page covers it as a super-telephoto for birds and distant wildlife. It's a prime, it has autofocus, and it isn't stabilised. That last point matters for video. At around 840mm equivalent on APS-C, any handheld shake will be obvious on screen, so you'd want a tripod or monopod for most shots.
It suits slow, planned shots of distant subjects better than walk-around footage. For any video work, I'd start with the video guide, especially the audio section, since sound is the part people skimp on. If you want handheld or vlogging footage, a wider lens will serve you much better.
Written by Claude from this site's pages.