Specification Brand : Nflightcam BulletPoint : ASA ORAL & PRACTICAL EXAM GUIDE BulletPoint1 : Remove annoying propeller distortion from your videos. BulletPoint2 : Compatible with GoPro Hero9, Hero10, Hero11, and Hero12 Black. BulletPoint3 : This kit includes two filters: one for standard light (ND8) and an additional one for bright light (ND16). BulletPoint4 : A soft pouch with dividers is included to protect your filters from scratches. BulletPoint5 : This filter is also available as part of our NFlightCam Cockpit Kit for GoPro Hero9, Hero10, Hero11, and Hero12 Black. CompatibleWithVehicleType : Vehicle ExternallyAssignedProductIdentifier1 : 703327449902 ExternallyAssignedProductIdentifier2 : 0703327449902 ItemForm : Sheet ItemName : Nflightcam Propeller Filter for GoPro Hero9, Hero10, Hero11, and Hero12 Black ItemPackageDimensions_Height : 18.4 centimeters ItemPackageDimensions_Length : 2.1 centimeters ItemPackageDimensions_Width : 12.2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : aviation-electronics-accessories Manufacturer : Nflight Technology LLC Material : Glass ModelNumber : ASA ORAL & PRACTICAL EXAM GUIDE NumberOfItems : 1 NumberOfPieces : 2 PartInterchangeInfo : Compatible with other Tempest oil filters. Not explicitly stated for other brands. PartNumber : 517 PhotoFilterEffectType : Neutral Density PhotoFilterFactor : 4 x ProductDescription : Designed to fit the GoPro Hero9, Hero10, Hero11, and Hero12 Black, this filter kit reduces or removes the propeller in most of the conditions encountered on a typical VFR flight. Mount it inside your cockpit to capture your flight without distracting propeller distortion ruining your video! This kit includes two filters: one for standard light (ND8) and an additional one for bright light (ND16). A soft pouch with dividers is included to protect your filters from scratches. HOW IT WORKS: The GoPro's image sensor is controlled by the amount of light it senses. In normal lighting conditions, the sensor runs faster than the propeller, causing distortion and odd lines in your video. This filter modulates the amount of light entering the sensor and keeps the speed of the sensor slower than the propeller. Since the amount of light changes constantly and the filter does not, we chose a Neutral Density filter that reduces or removes the propeller in 90% of the conditions experienced in VFR flight. For best results, we recommend avoiding shots straight into the sun. COMPATIBLE WITH: GoPro Hero9, Hero10, Hero 11, and Hero12 Black. Not compatible with any other GoPro. *Camera not included. ProductGrade : Performance Part ProductSiteLaunchDate : 2021-11-27T02:34:27.350Z Size : 1 Count (Pack of 1) SupplierDeclaredDgHzRegulation : not_applicable TotalEaches : 1 UnitCount : 1 UnspscCode : 45121600 WarrantyDescription : warranty direct through NFlightCam WaterResistanceLevel : not_water_resistant