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Diameter (mm):
25.00 +0.0/-0.025
Effective Focal Length EFL (mm):
50.00
Focal Length Tolerance (%):
±1
Back Focal Length BFL (mm):
40.60
Focal Length Specification Wavelength (nm):
587.6
Centering (arcmin):
<3
Center Thickness CT (mm):
25.80
Center Thickness A (mm):
13.00
Center Thickness B (mm):
6.40
Radius R1 (mm):
31.25
Radius R2 (mm):
18.47
Radius R3 (mm):
-18.47
Radius R4 (mm):
-31.25
Edge Thickness ET (mm):
20.58
Substrate:
Many glass manufacturers offer the same material characteristics under different trade names. Learn More
TECHSPEC® Steinheil Triplet Achromatic Lenses are designed for 1:1 conjugate ratios and utilize symmetry to correct for aberrations. Steinheils are made from a low index center element cemented between two identical high index outer elements. Each lens is edged down to f-numbers with reasonable aberration correction at increased fields. TECHSPEC® Steinheil Triplet Achromatic Lenses feature small diameters that allow for mounting in smaller spaces compared to traditional Steinheil lens designs. Steinheil Triplets are ideal for use in relay systems.
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
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