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Found 2 results

  1. THIS ITEM HAS NOW BEEN SOLD. This listing is for my personal narrowband filters (Kayron from Light Vortex Astronomy). They are the Astrodon Hydrogen-Alpha (HA), Oxygen-III (OIII) and Sulphur-II (SII) 3nm 1.25" narrowband set. These are considered the highest-end narrowband filters money can buy, able to produce images of exceptional quality and incredible sharpness, cutting through a vast amount of light pollution. The 3nm variants featured here are fantastic for pulling out fine nebulous structures clearly above background. For more information, please see Astrodon's website: https://astrodon.com/products/astrodon-narrowband-filters/ Please note that these three filters together currently retail at just over £1,710 from UK suppliers, €2,180 from European suppliers or $1,690 from US suppliers. Payment is preferred via bank transfer but PayPal is OK with an extra 2.9% to cover PayPal fees. I'll cover postage to you via tracked Courier. I welcome any questions you may have regarding this listing. Thank you for looking.
  2. I'm considering getting the Astrodon 3nm Ha filter - I already have the 5nm version but images I've seen show a definite improvement from the narrower passband. This cuts out NII which passes the 5nm Ha and I'm wondering how much data there is in NII that wouldn't otherwise be captured by 3nm Ha + 3nm OIII + 5nm SII. In other words is it worth getting the 3nm NII filter (doubling the cost)?
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