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All Products / Optics / Optical Lenses / Achromatic Lenses / Hastings Triplet Achromatic Lenses
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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

8mm Dia x 12.5mm EFL Hastings Triplet Achromatic Lens

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Stock #13-521 In Stock
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£96.05
Qty 1-5
£96.05
Qty 6+
£77.35
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Specifications

General

Type:
Achromatic Triplet Lens

Physical & Mechanical Properties

Diameter (mm):
8.00 +0.0/-0.025
Centering (arcmin):
<3
Center Thickness CT (mm):
7.23
Center Thickness A (mm):
5.23
Center Thickness B (mm):
1.00
Radius R4 (mm):
-9.395
Edge Thickness ET (mm):
5.44
Bevel:
Protective bevel as needed

Optical Properties

Effective Focal Length EFL (mm):
12.50
Focal Length Tolerance (%):
±2
Back Focal Length BFL (mm):
9.82
Focal Length Specification Wavelength (nm):
587.6
Radius R1 (mm):
9.40
Radius R2 (mm):
4.805
Radius R3 (mm):
-4.805
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
N-F2 / N-BK7 / N-F2
Surface Quality:
40-20
f/#:
1.56
Numerical Aperture NA:
0.32
Coating:
MgF2 (400-700nm)
Coating Specification:
Ravg ≤1.75% @ 400 - 700nm
Power (P-V) @ 632.8nm:
1.5λ
Irregularity (P-V) @ 632.8nm:
λ/4
Wavelength Range (nm):
400 - 700

Regulatory Compliance

RoHS 2015:
Compliant
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Reach 219:
Compliant
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Certificate of Conformance:
View
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Product Details

  • Unique, 3-Element Design
  • MgF2 Coated
  • Steinheil Triplet Achromatic Lenses also Available

TECHSPEC® Hastings Triplet Achromatic Lenses feature a unique, three-element design that provides distortion free, color-correct viewing. These lenses are computer designed to interact with each other, contributing to the reduction or elimination of “pincushion” distortion, in addition to chromatic and spherical aberrations. TECHSPEC® Hastings Triplet Achromatic Lenses are composed of two concave meniscus elements cemented to a double-convex lens. These lenses are AR coated with MgF2, making them ideal for performance in the VIS range.  

Technical Information

Coating Curves

Custom

Edmund Optics offers comprehensive custom manufacturing services for optical and imaging components tailored to your specific application requirements. Whether in the prototyping phase or preparing for full-scale production, we provide flexible solutions to meet your needs. Our experienced engineers are here to assist—from concept to completion.

Our capabilities include:

  • Custom dimensions, materials, coatings, and more
  • High-precision surface quality and flatness
  • Tight tolerances and complex geometries
  • Scalable production—from prototype to volume

Learn more about our custom manufacturing capabilities or submit an inquiry here.