Tiffen 6.6x6.6" Yellow #12 Glass Filter for Black & White Film Impact R2542-SGW It is also very secure

It is also very secure because its fiber optic signals cannot be easily tapped

leaving no residue on the teleconverter

& Android controllable Ethernet network connectivity Network auto-discovery software Remote monitoring of status & levels 1RU by 1

High-speed and long-distance transmissions by optical fiber Supports up to WUXGA (1920 x 1200) resolution Compatible with DDWG DVI standards R

45" / 24 cm Angle of View APS-C: 109

Tiffen 6.6x6.6" Yellow #12 Glass Filter for Black & White Film Impact R2542-SGW It is also very secureYellow #12 is commonly used for a noticeable increase in contrast with black and white films. This filter is glass and measures 165 x 165 mm (6. 6x6. 6") x 4 mm thick. Especially useful for clear contrast between blue sky with clouds and foreground Recommended as a basic filter for use with Kodak Aero Ektachrome Infrared film Type Yellow Size 6. 6x6. 6" (165 x 165 mm) Grade 12 Filter Factor 2 (+1 stop) Multi Coated No Rotating No Effect Contrast