Thank you so much! hopefully will go well. Just to make sure I leave aperture the same. and just alter shutter speed. Do i leave exposure or change that? is shutter a better effect?
If you leave the exposure then you will have three identical photos which will do little to help you create a HDR.
What he is saying, is alter the exposure ONLY by changing the shutter speed. DO NOT change the aperture or the iso....and you always want to shoot at base iso. HDR's have a tendency to increase noise so you want to start with the most noise free images possible.
Process I would do.
Camera on a tripod
ISO set to Base ISO (auto iso off)
Camera put into aperture priority mode or full manual
aperture set for the scene (whatever you decide)
autofocus the scene but don't shoot
flip the switch to go into manual focus and then leave the focus alone
Shoot a shot exposing the entire scene (exposing this by changing the shutter speed)
Shoot a shot exposing the shadows well with detail (exposing this by changing the shutter speed)
Shoot a shot exposing the highlights well with detail (exposing this by changing the shutter speed)
and as he said, if there is more than 2ev between them, shoot a shot between each of those.
Then off to your editing where most likely you will ruin the images due to lack of knowledge about the processing techniques...this takes much practice and is the most frusturating part and the hardest part to get right.....this is where most people fail.
Good luck