Used ccd camera : Compact slr digital camera reviews.
M51 Supernova (2011dh) Before & After
I just happened to shoot M51 "The Whirlpool Galaxy" a couple of months ago. Following the recent discovery by a french astronomer, I like many other budding astrophotographers decided to shoot M51 in the hope of capturing this rare event. Here are my before and after images of M51 both shot using the QHY9M CCD Camera in luminance. the poor weather conditions prevented me from shooting more sub exposures or adding color at this point. Before Shot Location: DownUnder Observatory, Fremont MI Date of Shoot April 12th 2011 Camera: QHY9M monochrome CCD 12 x 15 min sub exposures Luminance Scope: TMB 130SS using WO/TMB 68mm Field Flattener. Autoguided: using QHY5 auto-guider Paramount GT-1100S German Equatorial Mount (with MKS 4000) Image Acquired using Nebulosity II, stacked with Deep Sky stacker and processed with Photoshop CS3 After Shot Location: DownUnder Observatory, Fremont MI Date of Shoot June 6th 2011 Camera: QHY9M monochrome CCD 6 x 15 min sub exposures Luminance Scope: TMB 130SS using WO/TMB 68mm Field Flattener. Autoguided: using QHY5 auto-guider Paramount GT-1100S German Equatorial Mount (with MKS 4000) Image Acquired using Nebulosity II, stacked with Deep Sky stacker and processed with Photoshop CS3Caving Camera and Housing
This is camera I have used for my cave photography from 2005 to 2008. An Olympus C8080WZ. I chose it because it has a wide angle high quality lens, but was considerably cheaper than the digital SLRs available at the time. The waterproof housing which I use to protect it is a ewa-marine housing. These are designed for underwater use, but for me the main concerns were to protect the camera from dirt and splashes. All the camera functions can be controlled by push buttons, so I have complete control through the flexible plastic housing. Another advantage of this type of camera over a digital SLR. The camera gives excellent depth of field due to the small size of the CCD sensor. But this comes at the cost of high image noise. So I cannot get quality photos above about ISO 160. This is not such a big problem in most situations because the great depth of field allows me to use a wider aperture than with a 35mm camera. However in very large cave chambers and passages the noise levels have been a problem. So I am planning on taking my recently purchased EOS 5D underground this year (2008).
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