【FILTER FACTOR】The 9 gears density viewing filter is a variable neutral density viewing filter with a 2x to 512x filter factor that allows you to pre visualize exposures based on lighting conditions used in film and photography. | 【9 GEARS 】The viewing filter has a density range of 1 to 9 levels, from 0.3 to 2.7, which allows the filter to be used in situations ranging from very dim to exceptionally bright. | 【COMPRESSING VISUAL CONTRAST】While using this filter to preview your scene, you can also compress the visual contrast to fit the contrast of a color film or digital sensor, which has a much more limited range of contrast than the human eye. | 【PREMIUM QUALITY】This filter provides the ability to approximate lighting ratios and to better understand how shadows and highlights are displayed after recording. The filter is made of premium optical glass material, variable neutral density viewing filter, provide good using experience. | 【SATISFACTION GUARANTEE】 We promises every customer a shopping satisfaction, feel to us if you have any questions about your purchase. If you received our item damaged or other question, please us refund or replacement. We will give you a professional and detailed reply within 24 hours. | | | | |