Thanks a lot!
Bindii wrote:may I ask what the DRI technique is?
Pehpsi wrote:I believe DRI (dynamic range increase) is the same as HDR (high dynamic range) where you combine multiple shots at different exposures.
Almost right. For both DRI and HDRI you are combining a few shots with different exposures. However the techniques are slightly different.
For DRI (aka Digital Blending) you are combining shots with layer masks in Photoshop. Say you are taking highlights from one shot and shadows from another one. It's like using "graduated" neutral density filters with a custom shape.

People were using it for a long time. Even in old wet B&W process - they created masks from black paper and use them during enlarging negatives.
There are a few good tutorials on DRI:
http://www.luminous-landscape.com/tutor ... ures.shtml
http://www.luminous-landscape.com/tutor ... ding.shtml
http://www.adobe.com/digitalimag/pdfs/h ... covery.pdf
http://www.tofahrn-foto.de/index.php?lg=en&pg=tipps.dri
For HDRI you are creating a 32-bits image from shots with different exposures and then converting this 32-bits image to a 16-bits one with tone mapping software like Photomatix or "Merge HDR" option in Photoshop. Personally I'm not a fond of HDRI as it's something artificial.
And a few tutorials on HDRI as well:
http://www.luminous-landscape.com/tutorials/hdr.shtml
http://www.cambridgeincolour.com/tutori ... -range.htm