ASTRONOMY

A range of filters are available for Astronomy.

Filters are an accessory used in astronomy with telescopes and/or instruments such as a CCD camera, to improve the observation of celestial objects and/or to facilitate the measurement of the number of photons of selected wavelengths of light. Filters of varying wavelength width or bandpass can be used.

A range of filter choices are available depending on the type of observation: for solar, lunar, planetary, stellar and nebula observations. Filter properties and types will change depending on the specific wavelengths or regions of the electromagnetic spectrum observed. Filters are usually made of glass, acrylic or other similar transparent material and then coated as required. Filters can be placed in different locations of the optical path but typically just before the eyepiece lens or detector.

Astronomy Filter Capabilities

• Wavelength Range: 193nm up to 14000nm.

• Filters include Sloan DSS, MKO NIR filters (YJHKLM) and long wavelength N-Band all custom tuned to your desired specifications.

• Custom dichroics with an image quality reflected wave front and wedged to reduce astigmatism in transmission.

• Image quality filters up to 200mm diameter.  

• Transmitted wave front error as low as 1/20 wave.

• The definitive Johnson Kron-Cousins UBRVI photometric system.

• Space qualified filters using radiation-hard, non-outgassing materials.  
  

• Superior stability and longevity.

• Custom filters and substrates to meet your specific needs.

See some of the amazing astronomy projects that we have been fortunate enough to be a part of: Astronomy Timeline