Due to seesaw video from Fuji FinePix I start to find better solution. Camera must be placed in forward direction, can be lighter and must have smaller focal lenght ( wide view angle ). Since I browse in HK web-shop www.hobbyking.com I found FlyCamOne 2 camera kit. It was like dream. I bought one immediately :-)
This camera has lot of functions. Is able to record video to SD card, is able to make a photo pictures continuous ( each 4s one picture ), has a motion sensor to use it as security camera, has web-camera function, ability to tilt lens, etc.
With a special adapter it can be controlled (turn on/off recording, take picture) from ground by spare servo channel.
Picture quality is not so good, 1248x1024 with poor focus. Video is standard VGA quality. CCD sensor has trouble to balance darker and lighter parts of scene. Also adaption to changing light conditions is too slow. Due this disadvantages, FlyCamOne 2 is not sufficient to video recording during the flight. But, see the pictures and videos here.