Negative Achromats

Negative Achromats consist of two optical components, a crown and a flint glass lens, cemented together. The crown is usually a bi-concave lens. As is true to all Achromats, they are corrected for color and on-axis spherical aberration. They are used predominantly to extend focal lengths in combination with positive achromatic systems or CCD lenses.

Viewing 1 to 7 (7 Total)

Sort by: Name AscendingName DescendingBack Focal Length AscendingBack Focal Length DescendingCenter Thickness AscendingCenter Thickness DescendingDiameter AscendingDiameter DescendingEdge Thickness AscendingEdge Thickness DescendingEffective Focal Length AscendingEffective Focal Length Descending

Part Number

Diameter

Effective Focal Length

Back Focal Length

Center Thickness

Edge Thickness

L-AON003

8.0000

-20.0000

-21.3000

2.8

3.6000

L-AON004

10.0000

-20.0000

-21.0000

3.5

4.9500

L-AON005

10.0000

-25.0000

-26.5000

3.25

4.4500

L-AON006

18.0000

-50.0000

-52.4000

4.7

6.6000

L-AON008

25.4000

-125.0000

-128.2000

5.75

7.3000

L-AON009

26.4000

-109.0000

-111.7000

6.25

8.1500

L-AON012

31.5000

-100.0000

-103.8000

7.8

10.7000