Originally posted by mongrel I totally disagree. I own a Sigma SD1 which lets me manually lock-up the mirror so I can eliminate mirror slap by waiting a few seconds(maximum lock-up time is 30 seconds)and then use the electronic remote control to trigger the shutter at exactly the moment I want, not when a self timer has run it's course. This is perfect for landscape photography, especially when light changes by the second and using a self timer is problematic or photographing architecture when people entering the picture can ruin it. I was hoping that the K1 would have a manual mirror lock-up( I haven't read the instruction manual so I going only on the posts) as the pixel shift technology makes it perfect for landscape and architectural photography ( reading all colour information as per sigma sd1) but this seems a terrible omission as you cannot eliminate the vibration of the mirror flapping up.With the myriad of features on the k1, I would have thought this was not a difficult one to include. Here's hoping for the series 2 edition.
(wow, that was an old thread...)
On newer Pentax bodies, it seems you can do precisely what you want. On both my K-5ii and my K-3, I can select MUP, and fire the shutter at the exact time I want, after the mirror has locked in the up position. You only have to select MUP in the drive mode. So, for instance, you could compose using liveview, then get out of liveview, select MUP in the drive mode, press the shutter once to lock up the mirror, then press again to fire the shot. (Either using the shutter button or a remote, of course). You could also just select MUP in the drive mode, compose your shot using the viewfinder, then press the shutter when you are ready to lock up (no more light in the viewfinder) and press again to take your picture.
So, are you gonna purchase the K-1 tonight?