The HUTECH IDAS LPS-D1 light pollution filter
As discussed in the Light Pollution section, skyglow is a real challenge for the astrophotographer. I recently purchased a light pollution suppression filter and will share some first impressions here.
The Hutech IDAS LPS-D1 Light Pollution Suppression Filter is quite impressive. According to the description, this filter has been designed to suppress emission lines generated by artificial lighting, yet allow the important nebula emission lines to pass. Below you can see a RAW image of the Orion Nebula taken without any filter:
Here the picture of Orion Nebula taken with the IDAS LPS-D1 light pollution suppression filter (RAW image, unprocessed):
Other than the filter, I used the exact same equipment. Images were not taken on the same night though. Even when unprocessed, the contrast between the two images is stark. Below you can see the images after processing in Light Room and Photoshop.
Here is the image taken with the light pollution filter, after processing. The nebulae on this picture look richer, almost like three dimensional.
Warning: This filter is NOT for solar viewing or photography! For solar viewing, always check that filters meet the requirements for ISO 12312-2:2015.
Disclaimer: I’m not affiliated to Hutech or any other company mentioned on my website.
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