BI-ACHL-12.7-50.8-V, 12.7mm Achromatic Lenses MgF2 400-700nm, FL=50.8mm


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BI-ACHL-12.7-50.8-V: 12.7mm Achromatic Lenses MgF2 400-700nm, FL=50.8mm.

Achromatic doublets cement a crown and a flint glass element together, so that two wavelengths share one focus. This reduces chromatic and spherical aberration, giving a much tighter spot than a single lens over a broad band.

Type: Achromatic Doublet Lens

Diameter: 12.7 mm

Center Thickness: 4.00 ± 0.20 mm

Focal Length (EFL): 50.8 mm

Back Focal Length (BFL): 48.86 mm

Material: N-BAK1 / N-SF15

Coating Range: MgF2, 400–700 nm

Surface Quality: 40-20 (scratch-dig)

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BI-ACHL-12.7-50.8-V, 12.7mm Achromatic Lenses MgF2 400-700nm, FL=50.8mm
BI-ACHL-12.7-50.8-V, 12.7mm Achromatic Lenses MgF2 400-700nm, FL=50.8mm