Cokin Double Mask 2 A+B 345 square filter

The Double Mask system allows you to combine two scenes into one. The effect is achieved by exposing each image twice, one with each filter in the Double Mask set. One filter covers the center of the image, the other the surrounding frame. The system is available in two sizes: #342 and #345, which has a larger center spot. The double exposure can be achieved by setting the camera to multiple exposure mode or on film cameras by recocking the camera without advancing the film. It is recommended to measure without the mask in place.

This filter measures 85 x 85 mm and fits on the Cokin M-series holder.