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| Lens Grade: | Professional Camera |
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| Type: | Zoom Lens |
| Focus Type: | Telephoto Lens |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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Product: | Meniscus Lens |
Materials: | Optical Grade Glass, N-BK7, UV fused silica, CaF2, ZnSe, ZnS, MgF2, Si, Sapphire, etc. |
Diameter: | 1.5mm-550mm |
Diameter Tolerance: | ±0.05 mm (precision ±0.01mm) |
Thickness: | 0.5mm-100mm |
Thickness Tolerance: | ±0.05mm (precision ±0.01mm) |
Focal Length Tolerance: | ±1 % |
Surface Quality: | 20-10 scratch-dig (up to 10-5 available) |
Flatness: | PV<1/4L@ 633nm (up to 1/10L); RMS<1/40L |
Surface Roughness: | Rq<0.5nm |
Centration: | <3 arcmin (1 arcmin precision) |
Center: | ETV<0.008mm |
Chamfer: | <0.1mm |
Clear Aperture: | ≥90 % of Diameter |
AOI: | 0-55deg |
Coatings: | single-layer MgF2, broadband VIS, VIS-NIR, NIR I/II, telecom, or high-energy laser V-coatings (266nm, 355nm, 532nm, 1064nm, etc.) |





