Because we get a lot of snow here in Upstate New York, this ND filter will help our osmo's exposure in really bright situations. This ND filter is best used for water reflections, snow, or even desert shots. The razor sharp clarity of the glass along with the light weight design really helped us decide which filter was best for our Osmo.
Designed for Aerial Photography, these Polar Pro Filters are made for the DJI Zenmuse X5/X5R camera lens. This pack includes a UV, PL, and ND8 filter. We plan on using these for bright situations such as snow, water reflections, or even sunny day glares. We can now have more control over the camera's shutter speed which will give us more options when it comes to taking videos or photos. B&H Link: https://www.bhphotovideo.com/c/product/1202882-REG/polar_pro_p6001_dji_phantom_2_vision.html
This variable ND filter from Heliopan is great for photography and shooting video. I primarily got it to shoot with a greater depth of field in bright sunlight when shooting video. The markings are very helpful and the quality is amazing. I've only played with a couple other filters, but this one wins hands down so far. I also got a step up ring for my 77mm lenses and it works great. I haven't got to use it a lot yet because somehow I bent the step up ring. Just ordered another today. B&H Link: http://www.bhphotovideo.com/c/product/829300-REG/Heliopan_708290_82mm_Variable_Gray_ND.html Heliopan Website: http://www.heliopan.de/produkte/graufilter/ I read about it the first time from Philip Bloom (He's an awesome Director, DP and Fimmaker in the UK): http://philipbloom.net/2011/06/04/the-best-variable-nd-filter-i-have-used/