IDAS - Hutech - SCT Filter Adapter Light Pollution Suppression with 48mm LPS-D1 Filter

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This light pollution filter suppresses artificial light emission lines while preserving the emission lines from nebulae, therefore enhancing the view and image.

Manufactured by:
IDAS Filters

Product Description

IDAS-HUTECH - SCT Filter Adapter and a 2" Round, Mounted 48mm LPS-D1 FILTER

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. Unlike other light pollution suppression filters, IDAS filters are specifically designed for balanced color transmission using the IDAS unique Multi-Bandpass Technology (MBT) process. The balanced transmission allows color photographs to be taken with minimal color cast to broadband emission objects such as stars, galaxies and globular clusters.

Actual in-field tests against comparable LPS filters from Lumicon and Celestron show that the IDAS filter maintains better color balance than any other filters which have been designed for visual use. LPS filters utilize 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.

CCD imaging can also benefit, because although CCD imagers can already shoot through light pollution to some extent, including an LPS filter to the setup gives an added signal-to-noise edge. LPS filters are available for 1-1/4" and 2" (48mm) eyepieces, as well as in numerous sizes to accomodate most popular camera lenses. Each filter lot is tested and a plot of the spectral response of the lot is provided with each filter (see above).






Name IDAS - Hutech - SCT Filter Adapter Light Pollution Suppression with 48mm LPS-D1 Filter
Manufacturer IDAS Filters
Model ASH-LPS-D1-48SCT


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