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Astronomy Bandpass Filter, Kron-Cousins, Violet 25mm Dia.

Astronomy Bandpass Filter, Johnson-Bessel, Violet 25mm Dia.

520nm CWL, 50mm Dia, 70nm Bandwidth, OD 6 Fluorescence Filter

520nm CWL, 25mm Dia, 36nm Bandwidth, Unmounted OD 6 Fluorescence Bandpass Filter

520nm CWL, 12.5mm Dia, 36nm Bandwidth, Unmounted OD 6 Fluorescence Bandpass Filter

Everix Ultra-Thin OD 2 Bandpass Filter, 520nm, 12.5mm Dia.

Everix Ultra-Thin Narrow Bandpass Filter, 520nm, 12.5mm Dia., 10nm FWHM

Astronomy Bandpass Filter, Kron-Cousins, Violet 50mm Dia.

Astronomy Bandpass Filter, Johnson-Bessel, Violet 50mm Dia.

Astronomy Bandpass Filter, Kron-Cousins, Violet 50 x 50mm

Astronomy Bandpass Filter, Johnson-Bessel, Violet 50 x 50mm

520nm CWL, 50mm Dia, 36nm Bandwidth, OD 6 Fluorescence Filter

520nm CWL, 25mm Dia, 36nm Bandwidth, OD 6 Fluorescence Filter

520nm CWL, 12.5mm Dia, 36nm Bandwidth, OD 6 Fluorescence Filter

520nm CWL, 25mm Dia., Hard Coated OD 4.0 10nm Unmounted Bandpass Filter

520nm CWL, 12.5mm Dia., Hard Coated OD 4.0 10nm Unmounted Bandpass Filter

520nm CWL, 10nm FWHM, 50mm Mounted Diameter

520nm CWL, >OD5, 20nm FWHM Bandpass Filter, 25mm Dia.

520nm CWL, 25mm Dia., Hard Coated OD 4.0 10nm Bandpass Filter

520nm CWL, 12.5mm Dia., Hard Coated OD 4.0 10nm Bandpass Filter

520nm CWL, 10nm FWHM, 25mm Mounted Diameter

520nm CWL, 50mm Dia., Hard Coated OD 4.0 10nm Bandpass Filter

520nm CWL, 25mm Dia, 70nm Bandwidth, OD 6 Fluorescence Filter

520nm CWL, 12.5mm Dia, 70nm Bandwidth, OD 6 Fluorescence Filter