Originally posted by Brangdon Touch is especially good on images for setting the focus point exactly where you want it, for pinch-to-zoom or tap-to-zoom exactly where you want instead of into the centre; and for on-screen keyboards.
Okay i'm looking through the viewfinder, now please tell me what steps to take to change the focus point.
If you start to say i need to use liveview then it would be a feature i would use 1% of the time maybe....
For compact or mirrorless camera touch screen makes sense but for a DSLR it's a gimmick since you need to take your eye off from the viewfinder and so you lose the ability to take a photo.
With the K5 i can change the shutterspeed, aperture, ISO, EV balance, exposure lock, enable AF, change AF point, reset the metering, DOF preview, change AF mode without taking my eye off the viewfinder so i can change all those thing on the fly while shooting, if i need to look on the screen to change those settings it's simply a negative point. If i'm shooting portrait i hardly look at the screen, i'm much more focus on keep contact with the subject, if i'll constantly stare on the screen it will be a huge negative point.
Beside that, why would touch screen be better then a button to begin with?
About SD cards and tablets, most tablet have USB so just get a card reader.
WIFI is fun in the studio but in the field you don't want to have it on since it will drain the battery quite fast.