I am not a camera flyer. Personally I would prefer Hell's Halo over Optik 210 Camera Helmet; it looks like same shell with added ratchet clip on the back, so if you are planning to have heavier equipment it will better fit to your head .With chin cup as Optik 210 plus internal "halo" band that is adjustable using the ratchet clip on the back. I could not find any review for these two helmets, and also would appreciate any feedbacks from the users. Also it will be great to have pictures of internal "halo" band from inside the helmet.
Thanks.