638 BPF
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Product | Price |
|---|---|
US$215.00 | |
US$380.00 |
Product Specifications:
| Optical Specifications | |
| Center Wavelength [nm] | 638 |
| Transmittance [%] | >90 |
| FWHM [nm] | 2.2 (typical) |
| OD 3 Blocking Bandwidth [nm] | 4.5 |
| Blocking Range [nm] | 300-1200 |
| Blocking Level [OD] | >3 |
| Angle of Incidence [degrees] | 0 |
| Physical Specifications | |
| Filter thickness [mm] | 3 |
| Clear Aperture [mm] | 8 (12.5 mm) or 21 (25mm) |
| Outer Diameter [mm] | 12.5 +0/-0.1 (12.5mm) or 25 +0/-0.2 (25mm) |
| Ring mounted | yes |
| Ring Thickness [mm] | 5 |
| Scratch / Dig | 80/50 |
