So maybe not a huge release for the majority of us, but for astrophotographers this looks to be a nice release from Canon. The 60Da succeeds the EOS 20Da, which was also designed for astrophotographers.
“In a standard DSLR, an infrared filter limits the amount of Há light that passes through to the camera sensor, reducing the transmission of red signals to prevent unwanted colour artefacts in the final image. However, the EOS 60Da features a new modified filter that offers three times more transparency for Há light than the EOS 60D, combined with an 18-megapixel CMOS sensor, DIGIC 4 processing and a high ISO range to capture crisp, clear images of red-coloured emission nebulae.”
To read more on the Canon 60Da