Being a Nikon guy myself, I have to admit this is one area Canon is ahead of Nikon. I wish Nikon would bring out a special version of the D7000, or at least make some minor changes to help us guys ( as small a market as we are) who do astro-photography.
Anyhere, here's the article and link:
Canon Announces EOS 60Da for Astrophotography
http://www.canonrumors.com/2012/04/canon-announces-eos-60da-for-astrophotography/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+canonrumors%2Frss+%28Canon+Rumors%29-partial quote-
NEW CANON EOS 60Da DSLR CAMERA FOR ASTRONOMY ENTHUSIASTS CAPTURES THE TRUE COLORS OF THE COSMOS
LAKE SUCCESS, N.Y., April 3, 2012 – Canon U.S.A., Inc., a leader in digital imaging solutions, today introduced the EOS 60Da Digital SLR Camera, a long-awaited successor to the EOS 20Da that is optimized for astrophotography. This DSLR caters to astronomers and hobbyists who enjoy capturing the beauty of the night sky by offering a modified infrared filter and a low-noise sensor with heightened hydrogen-alpha sensitivity. These modifications allow the camera to capture magnificent photographs of “red hydrogen emission” nebulae and other cosmic phenomena.
“The EOS 60Da is a testament to the constant desire to meet the needs of every customer, including those in specialized fields,” said Yuichi Ishizuka, executive vice president and general manager, Imaging Technologies & Communications Group, Canon U.S.A., “This new camera enables an accurate depiction of a part of our solar system which is hard to achieve with conventional cameras but should be enjoyed and celebrated.”