Amazon.com has unwittingly leaked specs for the Canon 40D and 1DsMkIII by putting test pages up at their online store.  When will online retailers learn that you cannot fight the distributed power of fanboys around the world?  The 40D (10.1 megapixels, 6.5 fps, 17 frame RAW buffer) was listed as shipping on September 20 at $1,299.99, and the 1Ds Mark III (21.1 megapixels, 5 fps, 15 frame RAW buffer) as shipping on December 10, priced at $7,999.99.  Since the 1Ds Mk III should use the same body as the already-available 1D Mk III, housings should hopefully be ready by the time it ships.  Rumor has it that the new Canon cameras will be announced on Monday.

Amazon has since taken down the offending pages, but luckily, a few sights have cached the data:  [40D @ Gizmodo] [1DsMkIII @ Engadget].

Note that rumor is still rumor, and all of this leaked data may be inaccurate. It’s public now.  See DPReview for more.