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LSC7A-25.4-075-M28.5-A

Mounted Negative Achromatic Doublet, 24 mm Clear Aperture, -75 mm EFL, M28.5x0.6 — LSC7A-25.4-075-M28.5-A

Mounted negative achromatic doublet with specified clear aperture and negative effective focal length.

$82 USD

International shipping is quoted separately.

Standard preparation: 3–7 business days.
Special products require a confirmed lead time.

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Availability and the complete order total are confirmed with your quotation.

Technical Specifications

Clear aperture (mm)

24

Effective focal length (mm)

-75

Coating

Average reflectance below 0.5% (400–700 nm)

Mount thread

M28.5x0.6

Diameter tolerance

+0.0/-0.1 mm

Center thickness tolerance

±0.2 mm

Surface irregularity

λ/4 @632.8 nm

EFL tolerance

±2%

Centration

3–5 arcmin

Surface quality

60/40

Bevel

0.2 mm × 45°

Back focal length (mm)

-78.8