Optec - Astrodon Ic photometric filter, 50mm diameter, 3mm thick.

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Astrodon Photometrics UVBRcIc filters adhere to the Johnson/Cousins designs as
SKU: 19435
Manufactured by:
Optec
 

Product Description

Optec - Astrodon Ic photometric filter, 50mm diameter, 3mm thick.

Astrodon Photometrics UVBRcIc filters adhere to the Johnson/Cousins designs as closely as possible.  The following is a spectral compilation of actual scans of the Astrodon Photometrics UVBRcIc filters.
These filters are parfocal with all Astrodon LRGB and narrowband filters. You can add an Astrodon Clear or H-a filter and they will be parfocal within the limits of your optical system.

                                          


Features:

  • Curves designed after UV, B, V, Rc, Ic Johnson/Cousins
  • 100% coated filters - no colored glass
  • Peak transmission guaranteed > 90% 
  • <0.1%Tave out-of-band 300 - 1100 nm
  • Striae-free, single fused silica substrates
  • 1/4-wave propagated wavefront prior to coating
  • <0.5 arcminute substrate parallelism
  • 3.000 +/-0.025 mm substrate thickness
  • 1.25" mounted
  • 49.7 mm dia. unmounted (for most filter wheels) 

 

Specifications

Name Optec - Astrodon Ic photometric filter, 50mm diameter, 3mm thick.
Manufacturer Optec
Model 19435
Custom Stock Status Available - Ships in 3-5 Days

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