50.8 x 50.8

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2″ x 2″ Blue Optical Cast Plastic Filter

2″ x 2″ Green Optical Cast Plastic Filter

2″ x 2″ Red Optical Cast Plastic Filter

2″ x 2″, Optical Cast Plastic IR Longpass Filter

50.8 x 50.8mm Enhanced Aluminum, 4-6λ Mirror

50.8 x 50.8mm Left-Handed Circular Polarizing Film (CP42HE)

50.8 x 50.8mm Protected Gold, 4-6λ Mirror

50.8 x 50.8mm Protected Silver, 4-6λ Mirror

50.8 x 50.8mm Right-Handed Circular Polarizing Film (CP42HER)

50.8 x 50.8mm, 4-6λ Mirror

50.8mm Sq 50R/50T, UV-NIR Polka-Dot Beamsplitter

Hoya B370 (UV-VIS) 50.8mm Square, Colored Glass Bandpass Filter

Hoya B390 (UV-VIS) 50.8mm Square, Colored Glass Bandpass Filter

Hoya B410 (UV-VIS) 50.8mm Square Colored Glass Bandpass Filter

Hoya B440 (UV-VIS) 50.8mm Square, Colored Glass Bandpass Filter

Hoya B460 (UV-VIS) 50.8mm Square, Colored Glass Bandpass Filter

Hoya G530 (VIS) 50.8mm Square, Colored Glass Bandpass Filter

Hoya G533 (VIS) 50.8mm Square, Colored Glass Bandpass Filter

Hoya G545 (VIS) 50.8mm Square, Colored Glass Bandpass Filter

Hoya G550 (VIS) 50.8mm Square, Colored Glass Bandpass Filter

Hoya IR76N (760nm), 50.8mm Sq., 2.5mm Thick, Colored Glass Longpass Filter

Hoya IR80N (800nm), 50.8mm Sq., 2.5mm Thick, Colored Glass Longpass Filter

Hoya IR83N (830nm), 50.8mm Sq., 1mm Thick, Colored Glass Longpass Filter

Hoya IR83N (830nm), 50.8mm Sq., 2.5mm Thick, Colored Glass Longpass Filter