5/3/2013 from Sunnyvale CA USA VC200L of 1800mm FL with a self modified EOS KISS X2 (XSI or 450D) with IDAS LPS-P2 filter, ISO1600 sub exposures of 180 seconds, 20 lights, 10 darks and 10 flats, processed with PS CS5, Noise Ninja and Olympus Background extraction
Orion, Taurus, and Pleiades Constellations and Jupiter (brightest) オリオンと牡牛座、スバル 木星 最近の画像処理技術を利用すると、こども、天文ファン用、自分用に星座写真を、（１）線で示さなくても星座がわかり、（２）星の色が見えて、（３）光度に応じて適当な輝きと大きさに 出来そうなので、トライしてみた。特別処理をしないでスバルの輝きを出すのは難しい。 This nite sky image is processed so that amateurs and kids could recognize the shapes of the constellations and the star colors without the connecting lines, showing the shapes. Since the size is used for showing the star magnitude, Pleiades is tough one to make a proper presentation. reprocessed on 41/17/2013
4/10/2013 EOS KISS X3 (Rebel T1i) Kit lens at 24 mm Focal length ISO1600 5 seconds exposure Single shot Gemini Constellation ふたご座 Photoshop CS5 で、 微光星を出し、 明るい星を膨らませて星座を出し、 色の飽和を９０％以上にして星の色を出した。 茶こしフィルター（繊維が横に走ってる）をレンズに２回かけて２ショットで十字線を出した。
16 images are stacked, 10 noise and 10 flat frames ISO800 0.6 second exposure at 500mm FL, EOS REBEL XSI (450D or KISS X2), processed with Photoshop CS5 and Noise Ninja
Trial shooting to evaluate the performance of semi-narrow band filter, utilizing IDAS LPF-P2 and Lumicon H-alpha filters. ———————————————– The cutoff wave length of the Lumicon filter is 635 nm while the cutoff of the infra-red region by LPF-P2 occurs at 685~690 nm. Thus these two filters passes the spectrum of 35nm width. ーーーーーーーーーーーーーーーーーーーーーーーーーーーー IDAS LPF-P2 and Lumicon H-alphaを利用したＨアルファフィルターの性能テスト ーーーーーーーーーーーーーーーーーーーーーーーーーーーー Kit Zoom lens (35-80mm for film EOS REBEL) at 80mm FL Session 1: 20 frames with IDAS LPF-P2 at ISO1600, 60 seconds of EOS REBEL T3 Session 2: 10 frames with Lumicon H-alpha filter and LPF-P2 filter at ISO3200, 180 seconds of EOS REBEL T3 20 darks and 20 flats for each session ————————————- It appears these two filters combined together can filter out the city lights to a certain extent, enhancing the contrast of the image.
Single shot and three shots staced ISO800 0.6 second exposure at 500mm FL EOS REBEL XSI (450D or KISS X2)
ISO800 0.6 second exposure 150mm FL
The shots were made just for testing purpose! 3 min. x 8 frames at ISO3200 for H-alpha (poorman’s H-alpha — Lumicon H-alpha + IDAS LPF P2) 2 min. x 3 frames (IDAS only) same Sigma zomm (150-500mm) at 500mm. Regardng H-alpha and RGB composite, please refer to the method of 80/20/20 by Neil Heacock. http://tinyurl.com/7jqxzly
The Trapezium is seen at the center of M42. Gadgets: Sigma Telephoto lens 150-500mm at 500mm FL, with two EOSs, EOS Rebel XSI and T3, both modded, 0.5,2,4,8 minute exposures (4~8 frames each) at ISO1600 with XSI and Orion SkyGlow filter and, 2 min. x 25 frames at ISO3200 with EOS Rebel T3 with IDAS LPF P2 Note 8 minutes frames were discarded due to drift. The processing was not easy due to the difference in the transmission spectra between the Orion and the IDAS filters.
