It looks similar, but I use this one - as I focused on flying over water.
http://www.polarprofilters.com/shop/her ... accessory/
Original bracket works with the filter, but I don't use one, as it is the same piece of crap as the back tilt lever.
I have two solutions, when I use the PolarPro filter - I use a thin flexible lace that holds both GoPro and the filter:
when I don't need it, I use a quicklock bracket that I draw in CAD and printed in 3D:
as I have the possibility - I printed some other stuff in 3D:
- vibration plate replacement with direct GoPro attachment for FPV flights (longer flight time)
- GoPro 3 frame housing
- GoPro 3 lens protector
- Quicklock plate for easy gimbal detachment
as for the FPV set, I use:
- ImmersionRC 600mW (hidden inside P2)
- FatShark Dominator with built-in receiver
- FatShark Spiro Antennas
- iOSD mini (hidden inside P2)
open area, rather flat and with few trees - I got 1250m with no signal loss (both video and P2) - but 1300m fired up the FailSafe, although video was still on.
water area is a bit worse, I have no idea why - but I usually manage to get 1050m.
I never had any video issues up to 700m distance.