Negative Achromatic Lenses D=12.70mm F=-50.00mm VIS N-BAK4/SF5
Product No. 145192
Stock In Stock
Express DHL, Fedex etc.
- Dia 12.70mm
- EFL -50.00mm
- Coating AR@400~700nm
- Material N-BAK4/SF5
- BFL -52.30mm
- R1 -25.60mm
- R2 25.60mm
- R3 372.70mm
- CT 3.70mm
- CT1 1.50mm
- CT2 2.20mm
- ET 4.60mm
- Available Mount Ring 500030
- Design Wavelength --
- Diameter Tolerance +0.0/-0.1
- Center Thickness Tolerance ±0.2
- Surface Accuracy λ/4 @632.8nm
- Focal Length Tolerance ±2%
- Centering Tolerance 3~5arcmin
- Surface Quality 40-20~60-40
- Bevel 0.2X45°
- n --