iflyfree

i was told that a tennis ball weighing 1 lb 5.5 oz with a 6inch tail would be a good speed to fly head down with. i have a bunch of lead and i am trying to make one i have flown with one before but have never made one, if anyone could help me out. it would be greatly appreciated. thank you

i have a sony hc42 and i am mounting it on top of a hansen top mount. what else can i do to secure the camera besides just the bolt used on tripods. any help would be great, thanks

I was wondering if i should get a .3x or a .5x lens for tandem video

i bought a hc42 which has a 25mm thread size. what is the best .5 wide angle lens fir 25mm, for shooting tandem video.