GTX Penflex 40.5mm CPL Filter ND Filter and lightweight DSLR camera

and lightweight DSLR camera

and a maximum aperture of F2

*77mm Filter Size*

Advanced optics deliver excellent sharpness right out to the image edges

GTX Penflex 40.5mm CPL Filter ND Filter and lightweight DSLR cameraPenflex Circular Polarizers (CPL) are manufactured from Glass with Polarizing materials incorporated. The rings are metal, and feature a male thread which screws into the filter, and a female thread on front to accept lens hoods, other filters, or accessories. Once attached to a lens, the front ring of the polarizer rotates and may be adjusted for maximum effect. This is typically done by looking through the viewfinder while turning the front ring on