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Diameter (mm):
23.00 +0.0/-0.025
Effective Focal Length EFL (mm):
40.30
Focal Length Tolerance (%):
±2
Back Focal Length BFL (mm):
33.90
Focal Length Specification Wavelength (nm):
587.6
Centering (arcmin):
<3
Center Thickness CT (mm):
18.00
Center Thickness A (mm):
11.00
Center Thickness B (mm):
3.50
Radius R1 (mm):
32.48
Radius R2 (mm):
18.15
Radius R3 (mm):
-18.15
Radius R4 (mm):
-32.48
Edge Thickness ET (mm):
13.79
Substrate:
Many glass manufacturers offer the same material characteristics under different trade names. Learn More
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.
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