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1 results![Astrophotography-filters:-How-narrow-is-too-narrow Astrophotography-filters:-How-narrow-is-too-narrow](https://news-cdn.moonbeam.co/Astrophotography-filters-how-narrow-is-too-narrow-ScopeTrader_dvo9mt1c.jpg)
Astrophotography filters: How narrow is too narrow
Saturday, June 29, 2024 by Jim Thompson
For many years now I have been promoting the idea that for emission nebulae, whether you have light pollution (LP) or not, the narrower your filter’s pass bands are, the better. Time and again my test results have demonstrated this relationship to be true; that object contrast and signal-to-noise-ratio (SNR) increase as the pass band width decreases. Recently howe...
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