First you need a camera that is capable of bracketed exposures. Next you need a good tripod with the appropriate remote cable for your camera and you are ready. Use whatever lens gives you the field of view you are looking for.
A very good tutorial on HDR photography is this one
Nikon D90 and set out to find some good content with alot of dynamic range. Generally this means that the image you are composing has alot of bright, dark and normally lit areas. The human eye can distinguish more dynamic range than most camera sensors can capture. This is why an image will sometimes not have the impact that you remember or why an image seems to have too bright or too dark areas.
As you compose the shot on your tripod, focus on the entire area. You will be shooting with a fixed aperture as you do not want to change the depth of field. For this shot I used my Nikon D90 and my Tokina 11-16mm wide angle lens to gather as much of the room as possible. The bracketed exposure is shot in a group of three, one is 2 f-stops below the average metered light, one at the meter and the last one is 2 f-stops over the meter.
Now that you have your three exposures, you need to merge them. Adobe Photoshop can do this as well as several other programs. I am using a piece of software that is free, until my skills improve. The piece of software I used for this image is Picturenaut.
I followed the instructions to merge my three images, remove ghosts and tone map the image and this is how it came out.
|Smithsonian Castle interior|
Until next time, keep shooting.