Compare Model Drawings, CAD & Specs Availability Price
FSQ-U330
Optical Filter, Visible Absorbing, 50.8 x 50.8 mm, Hoya U-330 Glass
$192
In Stock
 FSQ-U330 Optical Filter, Visible Absorbing, 50.8 x 50.8 mm, Hoya U-330 Glass
In Stock
 $192
FSQ-U340
Optical Filter, Visible Absorbing, 50.8 x 50.8 mm, Hoya U-340 Glass
$152
In Stock
 FSQ-U340 Optical Filter, Visible Absorbing, 50.8 x 50.8 mm, Hoya U-340 Glass
In Stock
 $152
FSR-U330
Optical Filter, Visible Absorbing, 25.4 mm Diameter, Hoya U-330 Glass
$88
In Stock
 FSR-U330 Optical Filter, Visible Absorbing, 25.4 mm Diameter, Hoya U-330 Glass
In Stock
 $88
visible absorbing bandpass filter model fsr-u340
FSR-U340
Optical Filter, Visible Absorbing, 25.4 mm Diameter, Hoya U-340 Glass
$80
In Stock
 FSR-U340 Optical Filter, Visible Absorbing, 25.4 mm Diameter, Hoya U-340 Glass
In Stock
 $80

Specifications

  • Type
    Visible Absorbing Filter
  • Angle of Incidence
    0°
  • Size Tolerance
    ±0.3 mm
  • Thickness
    2.0 to 3.0 mm, typical
  • Surface Quality
    60-40 scratch-dig
  • Damage Threshold
    30 W/cm CW2, Typical
  • Wedge
    ≤3 arc min
  • Clear Aperture
    central ≥ 80% of area
  • Chamfers
    Up to 1 mm face width
  • Chamfers Angle Tolerance
    45° ±15°
  • Cleaning
    See How to Clean Optics

Features

Hoya U-330 or U-340 Glass

Hoya ultraviolet transmitting / visible absorbing filter glass is used to pass UV wavelengths while blocking the visible spectrum.  Please see the transmittance curve for more information.