Clear Aperture CA (mm):

9.5

Center Air Spacing (mm):

1.97

S-BAH11 / N-SF10 / N-BAF10 / N-SF10

Surface Quality:

40-20

Working f/#:

f/2.62

Coating:

MgF₂ (400-700nm)

Coating Specification:

R_avg ≤1.75% @ 400 - 700nm

Effective Focal Length EFL A (mm):

20.00

Effective Focal Length EFL B (mm):

25.00

Housing Diameter (mm):

15 +0.0/-0.10

Housing Length (mm):

21 ±0.2

Lens Edge Spacing at Mount (mm):

4

Magnification:

1:1.25

Object Distance (mm):

12.90

Image Distance (mm):

18.05

Construction:

Achromat Pair in Anodized Aluminum Housing

Type:

Relay Lens

Wavelength Range (nm):

400 - 700

1:1.25 with 20mm and 25mm EFL Achromats, 15mm Achromatic Pair