Im with Fahim on this, a 40D is a killer for the price, especially with a self mod, but for $3298 cooled is all starting to look a bit marginal.
You can get a brand new SBIG ST2000XCM for US$2895 or mono for US$3495 (regulated cooling, internal guide chip etc), or a S/H ST10XME for near that, serious hi QE imaging. OK, you then need a fllter wheel/filters for the monos, and the res isnt as hi as the 40D, ill give it that, but the QHY8 gives you the same as a proper astro cam.
Dont get me wrong, the 40D itself is a killer, but this product is pushing its value.
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