להבה הצורה זיון neutral density nd filter לעזאזל קשה אמפיבי
Amazon.com : Neewer 67mm Variable Fader ND Filter Neutral Density Variable Filter ND2 to ND32 (1-5 Stop) for Camera Lens NO X Spot, Ultra-Slim, Weather-Sealed : Electronics
A Complete Guide on How to Use Neutral Density Filters