Krono8 years ago+110Is it possible to combine the Hoya ND8 77mm with a Hoya ND64 77mm? (i.e. screw one on top of the other and thus achieve a multiplied strength).Show in original language (German)andrew4288 years ago011 Helpful answerHello Krono Yes, you can, but it is usually not advisable, because massive edge shading can occur. This depends very much on the lens. The wider the angle, the more likely it is to occur.Show in original language (German)Comment3 commentsPhotoFreak8 years ago000You can.Show in original language (German)Comment2 comments