Top Screen Type F-Form Aperture size 60 x 60 mm with 10 mm Thread.

Top Screen Type F-Form Aperture size 55 x 55 mm with 10 mm Thread.

Top Screen Type F-Form Aperture size 45 x 45 mm mm with 8 mm Thread.

Top Screen Type F-Form Aperture size 75 x 75 mm with 13 mm Thread.

Top Screen Type F-Form Aperture size 65 x 65 mm with 10 mm Thread.