Canon 20Da

danalec99

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20Da

“The EOS 20Da digital SLR is a direct result of Canon addressing the specialised needs of the astrophotography market,”
 
Ihaveaquestion said:
astrophotography?

Taking photos of stars and planets (usually using a telescope as well)
Check out some of Pursuer's posts for some great astrophotography.
 
From that article said:
While traditional digital SLRs lack a live preview on the LCD monitor due to the reflex mirror and shutter, the EOS 20Da digital SLR resolves this issue by locking up the mirror and opening the shutter to display a magnified live view of the subject on the 1.8” LCD monitor. (This feature is effective for night viewing conditions only. It cannot be used in bright light.) To ensure a sharp focus, the central portion of the image can be magnified on the LCD by 5x (4% of the picture area) or 10x (1% of the picture area). The live view mode can also be viewed through a TV monitor while connected to the EOS 20Da camera’s video OUT terminal.

Cool!!! But who would have a tv out in the middle of a field or at the top of a hill when you're trying to take these pics??
 
The low-pass filter positioned in front of the EOS 20Da’s 8.2 Megapixel CMOS sensor has been modified to yield sharper and higher contrast images of various astronomical phenomena such as diffuse reddish nebulae. The modification increases the transmission of light at the wavelength of 656nm, known as the Hydrogen Alpha line, or Hα wavelength, by a factor of 2.5x compared to the standard EOS 20D digital SLR.

i could be wrong but this seems an awfully big cost for canon for what would seem a tiny market?! surely it would have been better to improve the camera as an upgrade rather than just adding the low pass filter? i think it's bizarre unless there's a mass of astrophotographers out there (in deep space no doubt).
 

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