IDAS NGS1 Broadband Nebular Filter for Astrophotography with IR Block - M48x0,75 mounted

IDAS NGS1 Night Glow Suppression Filter 48 mm (2"), mounted

IDAS NGS1 (formerly LPS-D3) filters enhance the contrast of astronomical emission nebulae against a sky with both man-made (including white LED lights) and natural sky glow sources, yet preserve color balance of broadband objects such as galaxies. As with other IDAS interference filters, the bandpasses are designed to accommodate the steep ray angles of fast optical systems (f/2 as fastest).

The most important spectral lines of hydrogen (Hα, Hβ, Hγ), oxygen ([O III]), sulfur ([S II]) and comets (C₂ in the head and the coma, CO⁺ in the ion tail) are transmitted.

Astrophotographic results obtained with this filter on Astrobin

Here you find astrophotos made with this filter: Link zu Astrobin

Features include:

Ideal flat-top and moderate bandpass

Excellent in-band transmission

Steep bandpass edges minimize internal reflections

Near IR (NIR) is blocked up to 1200 nm

2.5 mm thickness (parfocal with other IDAS LPS filters)

IDAS-proprietary IGAD/MBT/UFP quality

Made in Japan