About this product
Model: ngs1_48st2
Part Number: LPS-D3-48S
The IDAS NGS1 filters enhance the contrast of astronomical emission nebulae against a sky with both man-made and natural* sky glow sources, yet preserve the colour 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.
The world-first filter that suppresses both man-made and night glow interferences in the green , orange and red ranges.
Light pollution suppression (LPS) filters are designed to suppress the common emission lines generated by artificial lighting, yet allow the important nebula emission lines to pass, thus enhancing the contrast of astronomical objects, particularly emission nebulae (see filter plots). The most recently introduced version (D3) has a bandpass designed to cope with the increasing trend of society's switch to LED lighting..jpg)
Unlike other light pollution suppression filters, IDAS filters are specifically designed for balanced colour transmission using the IDAS unique Multi-Bandpass Technology (MBT) process. The balanced transmission allows colour photographs to be taken with minimal colour cast to broadband emission objects such as stars, galaxies and globular clusters.
LPS filters utilise the unique IDAS Ion Gun Assisted Deposition (IGAD*) coating technology for superior coating durability (quartz hardness) and safer cleaning. IGAD coatings also improve temperature and humidity stability of the filter performance, reducing spectrum shifts down to +/-1nm from the +/-3 or 4nm shift of standard coatings.
ZF is a T2 drop-in format that will work with cameras like the ZWO ASI533 and ASI294. The IDAS GNB filter passes both the Ha and OIII regions in the same manner as of the IDAS NBZ to suppress light pollutions in the visible light regions.
Customer reviews
| Average Rating (1 Review): | |
10 June 2021 | Steve
I’m in bortle 4, but there’s a street light right next to where I have to locate my gear. Bought this filter after having lots of light pollution issues with a new ASI2600MC Pro OSC camera. I use it with a SWO filter drawer (the filter screws in perfectly), and the results are great. Very pleased with the filter. Good images and much reduced light pollution.
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