Hoya 77Mm Variable Density Screw In Filter

Product Descriptionfor Both Still Photography And Video Use, The Hoya Variable Density X3-400 Filter Makes It Easy To Adjust The Brightness Of A Scene As Well As Gives More Control Over The Exposure Settings Of Your Camera. By Rotating The Inner Filter Ring, The Filter Decreases Light Transmittance Between Approximately 1/3 And 1/400Th Of Its Original Level. This Permits Aperture Values To Be Set Dependant On The Desired Effect And Allows A Much Greater Range Of Shutter Speed. For Example, In Full Sunlight Crowds Of People Or Water Can Be Blurred Using A Long Shutter Speed. Depending On The Situation The Practical Exposure Range And Light Transmittance Will Vary. Main Features Include: Filter Factor Ndx3-Ndx400 Approx. 1.5 To 8.5 Stops Light Reduction. Black Almite Frame With Satin Finish To Reduce Reflections. Low Profile Frame - Avoids Vignetting On Super Wide-Angle Lenses, Will Accept A Clip-Cap. Rotating Inner Filter Ring With Scale Indicating Max. Through To Min. Settings The Hoya Variable Neutral Density Filter Provides A Convenient Way To Maintain Exposure Control By Being Able To Vary The Amount Of Light Entering The Camera By 1.5 To 9 Stops (0.45 To 2.7 Density For Cineset Contains:Hoya 77 Mm Variable Density Screw In Filter