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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

12.5mm Dia. x 80mm FL, VIS 0°, Inked, Achromatic Lens

Stock #47-670-INK 3-5 days
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Diameter (mm):
12.50 ±0.025
Effective Focal Length EFL (mm):
Focal Length Tolerance (%):
Back Focal Length BFL (mm):
Focal Length Specification Wavelength (nm):
Clear Aperture CA (mm):
Centering (arcmin):
Center Thickness CT (mm):
3.70 ±0.10
Center Thickness CT 1 (mm):
2.10 ±0.05
Center Thickness CT 2 (mm):
1.60 ±0.05
Radius R1 (mm):
Radius R2 (mm):
Radius R3 (mm):
Edge Thickness ET (mm):
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Surface Quality:
Numerical Aperture NA:
VIS 0° (425-675nm)
Coating Specification:
Ravg ≤0.4% @ 425 - 675nm
Power (P-V) @ 632.8nm:
Irregularity (P-V) @ 632.8nm:
Protective bevel as needed
Achromatic Lens
Wavelength Range (nm):
425 - 675

Regulatory Compliance

RoHS 2015:
Reach 209:
Certificate of Conformance:

Product Family Description

  • Designed for 0° Angle of Incidence
  • Less Than 0.4% Reflectance Per Surface from 425 - 675nm
  • MgF2 and VIS-NIR Coated Achromats Also Available

TECHSPEC® VIS 0° Coated Achromatic Lenses consist of two optical components cemented together to form an achromatic doublet. The doublet is computer optimized to correct for on-axis spherical and chromatic aberrations.  Achromatic lenses are best for applications involving multi-color (white light) imaging due to their specific doublet lens pairing that enables them to correct the color separation inherent in glass. TECHSPEC® VIS 0° Coated Achromatic Lenses provide optimized transmission for 425 – 675nm, reducing average reflection to 0.4%. MgF2 and VIS-NIR Coated Achromats are also available on our website.