NGC7000 by Eric Ng
發表於 : 2016-11-11, 11:34A picture is worth a thousand words....
剛收到香港天文學會副會長吳偉堅先生來訊，他這段日子教授了好一批愛好者用Star-Adventurer進行星野及深空攝影，留意本版陸續發表的照片。
以下是19x300s，無導星拍攝。
Quote :
Hi Savio, here is the NGC7000 taken in Gaomeigu during my trip for the remote observatory project in Yunnan. I spent some time to shoot the deepsky at medum focal length and the Star Adventurer mount functions very well. This NGC7000 is a composited image of 19 frames with 300s exposure. With the careful polar alignment with the Polemaster, this combination is the very effective and portable solution to do the long exposure photography. I may share with you another processed image later with the auto-guided one at longer focal length.
Camera: Canon 1100D (modified)
Lens: Canon EF180L F3.5 macro lens@F4
Mount: Skywatcher Star Adventurer
Polemaster
Filter: STC Astro-Multispectra Filter
Exposure: 300sx19 @ ISO: 1600
Calibration: Dark subtracted only.
Processing: Stacked and colour calibration in PI, processed in Photoshop 2015 CC.
剛收到香港天文學會副會長吳偉堅先生來訊，他這段日子教授了好一批愛好者用Star-Adventurer進行星野及深空攝影，留意本版陸續發表的照片。
以下是19x300s，無導星拍攝。
Quote :
Hi Savio, here is the NGC7000 taken in Gaomeigu during my trip for the remote observatory project in Yunnan. I spent some time to shoot the deepsky at medum focal length and the Star Adventurer mount functions very well. This NGC7000 is a composited image of 19 frames with 300s exposure. With the careful polar alignment with the Polemaster, this combination is the very effective and portable solution to do the long exposure photography. I may share with you another processed image later with the auto-guided one at longer focal length.
Camera: Canon 1100D (modified)
Lens: Canon EF180L F3.5 macro lens@F4
Mount: Skywatcher Star Adventurer
Polemaster
Filter: STC Astro-Multispectra Filter
Exposure: 300sx19 @ ISO: 1600
Calibration: Dark subtracted only.
Processing: Stacked and colour calibration in PI, processed in Photoshop 2015 CC.
