ALTAIR nickaltair Posted July 26, 2022 ALTAIR Share Posted July 26, 2022 New Altair 3nm ULTRA Narrowband filters are in stock. Another Altair first - each filter has an individual test report. Very deep OD blocking make these filters able to support deepsky imaging with a full moon, in the city. In fact, the images below were taken in London this summer. I've added some star tests with Altair 80mm F6 Triplet APO running at F4.8 with Planostar 0.8x reducer. They were kindly sent to me by customer Ryan Harris, a Beta tester who has had them for some time, and a member of the Altair Facebook group. You can check out his images in the group. Single sub screenshot with Altair Hypercam 26M camera & Altair 80mm Wave Series ED Triplet. 600secs DBE & basic stretch in Pixinsight (elephant's trunk nebula, test images all courtesy Ryan Harris, London): 1 Quote Link to comment Share on other sites More sharing options...
Andy 274 Posted July 26, 2022 Share Posted July 26, 2022 Incredible stuff Nick - so clean those images of Ryan's. Another Altair quality product line 1 Quote Link to comment Share on other sites More sharing options...
TareqPhoto Posted August 4, 2022 Share Posted August 4, 2022 I am just planning to buy SII 3nm 2" and a dual band filter of 3nm as well, i already have Ha 3nm from another brand and with a dual band i don't need to buy OIII, i have OIII 3nm 1.25" from Chroma for smaller sensor, so i must rearrange my priority better. 1 Quote Link to comment Share on other sites More sharing options...
TerryMcK Posted December 15, 2022 Share Posted December 15, 2022 They look great and the O3 doesn’t appear to have any dreaded haloes around the bright star. Quote Link to comment Share on other sites More sharing options...
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