Originally posted by codiac2600 How do you know the 450D has the best live view on the market? The contrast control AF in the D300 from Nikon you can't even handhold and is much too slow and inaccurate handheld so why should the 450D be better? No one has claimed the 450D to work amazingly in live view with contrast control just yet.
On paper and user manuals, the 450D offers Live Histogram and can be used in all non-picture modes include P, Av, Tv, M and A-Dep and it offers two options for AF. For the K20D, it is told in the user manual that under LiveView, the user cannot change *any* exposure setting plus there is no indication for the AF nor there is a full LiveView mode with AF but only MF is possible if the user wants to keep the LV. The manual even tells us that the LV will not be working if the outside temperature is "too hot"!(?)
Yes, contrast detection AF is slower, with the 450D, it can be used handheld and will track for moving object too for the focusing frame (as verified by some reviewers of local magazines). It is told that it requires about 3 seconds to do the AF but if in "quick AF" mode (i.e. mirror up for AF), only less than one second is required (but then the LV will cease during AF).
Chris, I actually don't know exactly what you wished to point out (the LV of the K20D is just so weak?), but even the contrast detection AF is slower, it must be better than *none*. Don't you agree?
Afterall, I really don't understand why Pentax need to implement their Live View with so many limitations and made this mode virtually useless than it should be.