Tiffen 55mm Neutral Density ND 0.9 Filter

Custom 55 mm low-profile Neutral Density 0.9 filter by Tiffen.  This filter is intended for use with the BlurFix3 SO 55mm Filter Adapter and BlurFix3+ 55mm Filter Adapter filter adapters.  This filter is ultra low-profile to minimize or eliminate vignetting, and is only available from SRP.  A ND 0.9 filter cuts all light by 87.5%.  This forces the Hero 3, 3+ or Hero 4 to slow its shutter speed.  An ND filter is often used to reduce prop blur for general aviation videography and minimize the jello effect experienced in radio controlled and motor sport applications.  

Consider using this filter if you are filming the following sports:

    High vibration motorsports
    Multi-rotor RC
    General aviation

Tip: If you are experiencing one of the undesirable effects of rolling shutter like prop blur or the jello effect then consider having multiple ND filters with you during filming.  The ND filter choice you make will be based on the severity of the vibration experienced by the camera and lighting conditions present at the time of filming.  For instance, flying your quadcopter late in the evening you probably don't need any filters but in the middle of the day on a cloudless bright sunny day, you could see lots of jello in your video unless you use a ND0.9 or ND1.2 Filter.  If conditions are some where in between, we recommend using a ND0.6 filter.

Weight: 18.2 grams

Note: The BlurFix3+ 55 adapter and camera are sold separately