SPECIFICATIONS
| Model | FTLP640M52 |
| Filter Type | Long Pass |
| Color | Dark RED |
| Wavelength Range | 640 nm – 1100 nm |
| Cut-in 50% Transmission | 640 nm |
| Cut-Off 50% Transmission | ———- |
| Spectral FWHM | ———- |
MECHANICAL
| Filter Thread | M52 x 0.75 |
| Outer Diameter | 55.0 mm |
| Clear Aperture | 47.0 mm |
