천체사진의 대가 중에 한사람인 Chuck V. 이 캐논의 새로운 천체사진용 DSLR인 20Da 로 촬영한 테스트 사진이랍니다.
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Here's three test exposures I've done. I consider them all  
underexposed when compared to the total exposure time times that many  
are using. I used my AP 155EDF for all of them. All processing was  
done in Photoshop except alignment where necessary with Registar, and  
noise reduction with Noise Ninja.

Pelican (12 x 10mins @ ISO 800 - 4 exposures lost to clouds)

http://images.aa6g.org/pelican_20da.jpg



M16 (8 x 15 mins @ ISO 800)

http://images.aa6g.org/m16_20da.jpg




Part of IC1318 (13 x 12 mins @ ISO 800 - 3 exposures lost to clouds)

http://images.aa6g.org/ic1318_d20a.jpg



Chuck