Home > Filters > Imaging & Photography > Light Pollution Reduction
(Details shown apply to the default selection)
Model: ak_cls-ccd_125Part Number: 8H00DPBrand: Astronomik
The CLS-CCD Filter enhances the contrast between astronomical objects and the background. Due to the wider transmission curve compared to UHC filters, a greater amount of light will pass the filter. Stars will be less dimmed. This filter has been optimised to block as much spurious light as possible and simultaneously provide the best performance for 'useful' light. A good filter for DSLR-, CCD- and film b/w-photography as well as observation of deep-sky-objects with telescopes or photo lenses of all aperture f/3 and above.
The filter blocks completely emission lines of artificial light sources like streetlights (e.g. sodium- and mercury-vapor) as well as the airglow. All 'important' emission lines as well as the spectral range of the night-adapted eye are passed.
The supplementary IR-blocking layer allows the use for DSLR- and Webcams without an integrated IR-block filter.
The major emission lines of artificial light pollution:| Hg 435,8nm | Hg 546,1nm | Hg 577,0nm | Hg 578,1nm || Na 589,0nm | Na 589,6nm | Na 615,4nm | Na 616,1nm |The major emission lines of nebulas:H-β 486,1nm | OIII 495,9nm | OIII 500,7nm | H-α 656,3nm
Be the first to Write a Review for this item!
First Light Optics LtdUnit 7 Budlake UnitsBudlake RoadMarsh Barton Trading EstateExeter, DevonEX2 8PY
Company No. 5892293VAT No. 907 2895 01
First Light Optics Ltd All rights reserved © 2018