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filters

Dichroic RGB-IR 4-Filter Set for IFW - 50mm Round Unmounted [17445]

Optec, Inc.   ——   SKU: 17445
$583.00 CAD
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About the Optec Dichroic RGB-IR 4-Filter Set for IFW - 50mm Round...

Optec offers an exclusive set of parfocal wide band LRGB and narrow band H-Alpha and OIII intended for CCD astro-imaging. These filters are 2mm thick, 50mm diameter and are made to the highest standards for high transmission and minimum wavefront distortion. The unique construction with the hard dielectric layers placed on only one side of the filter substrate avoids multiple reflections between the two sides found in most filters of this type. Halos and ghost stellar images are avoided.

 

They are made exclusively for Optec and are not available elsewhere. The wideband LRGB set is similar in transmission to the Astrodon, but much less expensive.

 

The narrow band filters are centered on the H-alpha (656.3 nm) and OIII (500.7nm) emission lines and have a pass band of 8+/- 1.5 nm. Peak transmission is above 85%. All filters in this group are parfocal.

 

 

Optec Dichroic RGB-IR 4-Filter Set for IFW - 50mm Round Features...

 

  • These filters are 2mm thick, 50mm diameter and are made to the highest standards for high transmission and minimum wavefront distortion

     

     

  • All filters in this group are parfocal and are presented in a 50mm round, unmounted format for the Optec Intelligent Filter Wheels

     

     

  • The wideband LRGB set is similar in transmission to the Astrodon, but much less expensive

     

     

  • Unique construction with the hard dielectric layers placed on only one side of the filter substrate avoids multiple reflections between the two sides found in most filters of this type

     

     

  • Halos and ghost stellar images are avoided

 

 

Optec Dichroic RGB-IR 4-Filter Set for IFW - 50mm Round Specifications...

Filter Types: Red, Green, Blue, Infrared

Format: Round Unmounted

Construction: Glass

Optec: 17445

 

Customer Note: Image depicts optional filter wheel and equipment. This product number is for the 4-filter set only.