Description
Antlia Filters has announced the new anti-light pollution filter, the new ALP-T
Spreading urbanization and light pollution are becoming a growing problem for amateur astronomers and astrophotographers in recent years.
Current solutions to the problem can be very expensive and usually include the purchase of a monochrome camera, several types of narrow band filters and a filter wheel.
The ALP-T filter is a practical solution for all amateur astronomers.
Its double-bandwidth has been designed for the new generation color CMOS cameras
The convenience and effective cost of this filter allow astrophotographers to shoot a rich selection of astronomical objects, even in heavily light-polluted areas.
This filter effectively isolates the emission lines of nebulae in H-Alpha and OIII and reaches a maximum transmission of up to 97%.
The bandwidth cutoff is 5nm.
The performance of this filter delivers superb images with excellent light pollution control.
Recommended for: Reduce light pollution, Increase contrast for emission nebulae, Save processing time
Recommended use for: Color CMOS
Why choose it?
ANTLIA has chosen to create a filter with characteristics such as to respect the emission of most celestial bodies, eliminating light pollution from the image.
As detailed below:
Substrates: | B270 |
Thickness: | 2.0mm +/- 0.1mm |
Tpeak: | T>97% |
Blocking range: | 300-1000nm |
Blocking depth: | light pollution line blocking >99% |
Surface quality: | 60/40 |
Transmitted Wavefront RMS: | λ/4 |
Parallelism (arsec): | 30s |
FWHM extension | O3 5nm +Ha 5nm |
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