Multi-Exposure Vs HDR?

[boon4376]

What is the difference between these two settings?
Are they the same thing?

My K-r has HDR mode which will take 3 shots on the fly. -3 / 0 / +3 and create a composite.

Then it has multi exposure mode where it will take up to 9 shots at different exposures (manual or automatic) and create a composite. Is that the same thing that "HDR" does? I notice that HDR setting is not available in RAW mode, and that multi-exposure must be used.

Also, when using multi exposure, how do you change the exposure settings without slightly knocking the camera out of perfect alignment when pressing buttons? By remote? Or with a super duper sturdy tripod?