It now appears at the manual download page: http://www.pentax.jp/english/support/download_manual.html
And the direct download link is: http://www.pentax.jp/english/support/man-pdf/k-5.pdf
A quick glance to the manual verifies the following limitations of the K-5, many of which are in common with the K-r:-
|User Manual Page||Limitation|
|116||Slow Top Flash X-sync of 1/180th second|
|124||The Same SAFOX VIII Physical Layout (Precise Pinpointing is Just Impossible)|
|-||No f/2.8 AF Sensor (Which Affects AF Accuracy with Fast Primes*)|
|151||Maximum 8 frames for Shooting RAW in Continuous Hi mode (7 fps) (Whilst it can only be up to 10 frames for Continuous Lo (at only 1.6 fps))|
|171||Motion JPEG in AVI Only for Video Recording (No Motion Compression)|
|172, 174||Only Aperture and EV Compensation Can be Set for Video Recording|
|173||Mono Sound Recording for Built-in Microphone for Video Recording|
|175||AF and Re-focusing is Not Possible During Video Recording (Vs All Current C, N and S DSLRs with the Video Function Can! :-o)|
|175||No Still Image Can be Taken During Video Recording (which All Current Canon DSLRs Can)|
*N.B.: Canon had f/2.8 AF line sensors incorporated into their entry level DSLRs since the EOS 450D whilst Nikon and Sony middle class to higher end models do also have. Why Pentax alone did not make it?! >:-( It helps a lot to minimise AF errors with fast primes at wider apertures after all.
K-r Vs K-x - What's New and What's Not?
K-r and 645D User Manuals are Available for Download
Ten Reasons for Thinking Twice before Decided on a K-5..