Compare Model Drawings, CAD & Specs Diameter Effective Focal Length (EFL) F/# Availability Price
Plano-Concave Lens, Fused Silica, 6.35 mm, -12.5 mm EFL, Uncoated
$158
In Stock
6.35 mm -12.5 mm -2
In Stock
Plano-Concave Lens, Fused Silica, 12.7 mm, -25 mm EFL, Uncoated
$159
In Stock
12.7 mm -25 mm -2
In Stock
Plano-Concave Lens, Fused Silica, 25.4 mm, -1000 mm EFL, Uncoated
$124
In Stock
25.4 mm -1000 mm -39.4
In Stock
Plano-Concave Lens, Fused Silica, 25.4 mm, -250 mm EFL, Uncoated
$121
In Stock
25.4 mm -250 mm -9.8
In Stock
Plano-Concave Lens, Fused Silica, 25.4 mm, -200 mm EFL, Uncoated
$123
In Stock
25.4 mm -200 mm -7.9
In Stock
Plano-Concave Lens, Fused Silica, 25.4 mm, -150 mm EFL, Uncoated
$129
In Stock
25.4 mm -150 mm -5.9
In Stock
Plano-Concave Lens, Fused Silica, 25.4 mm, -100 mm EFL, Uncoated
$127
In Stock
25.4 mm -100 mm -3.9
In Stock
Plano-Concave Lens, Fused Silica, 25.4 mm, -75 mm EFL, Uncoated
$146
In Stock
25.4 mm -75 mm -3
In Stock
Plano-Concave Lens, Fused Silica, 25.4 mm, -50 mm EFL, Uncoated
$163
In Stock
25.4 mm -50 mm -2
In Stock
Plano-Concave Lens, Fused Silica, 50.8 mm, -1000 mm EFL, Uncoated
$333
In Stock
50.8 mm -1000 mm -19.7
In Stock
Plano-Concave Lens, Fused Silica, 50.8 mm, -500 mm EFL, Uncoated
$320
In Stock
50.8 mm -500 mm -9.8
In Stock
Plano-Concave Lens, Fused Silica, 50.8 mm, -250 mm EFL, Uncoated
$370
In Stock
50.8 mm -250 mm -4.9
In Stock
Plano-Concave Lens, Fused Silica, 50.8 mm, -200 mm EFL, Uncoated
$445
In Stock
50.8 mm -200 mm -3.9
In Stock
Plano-Concave Lens, Fused Silica, 50.8 mm, -150 mm EFL, Uncoated
$498
In Stock
50.8 mm -150 mm -3
In Stock
Plano-Concave Lens, Fused Silica, 50.8 mm, -100 mm EFL, Uncoated
$535
In Stock
50.8 mm -100 mm -2
In Stock

Specifications

  • Lens Shape
    Plano-Concave
  • Lens Material
    UV Fused Silica
  • Antireflection Coating
    Uncoated
  • Surface Quality
    20-10 scratch-dig
  • Surface Accuracy, Irregularity
    λ/4
  • Surface Accuracy, Power
    1.5 λ
  • Surface Flatness
    λ/4
  • Centration
    ≤3 arc min
  • Chamfers
    0-0.8 mm face width
  • Chamfers Angle/Tolerance
    45° ±15°, typical
  • Focal Length Tolerance
    ±1 %
  • Diameter Tolerance
    +0/-0.1 mm
  • Center Thickness Tolerance
    ±0.1 mm
  • Clear Aperture
    ≥central 90% of diameter
  • Cleaning

Features