Imagemaster Offline Upload & Sell: On
|
grandmas wrote:
How about duplicating a single image and use curves to adjust things differently as you see fit, then blend the two? I just did this a while back for an image, and it is not a lot of extra trouble.
Sure you can, but your single image still was not capable of recording a dynamic range anywhere close to what multiple images can record. You can't magically recover more highlights and shadows when your one shot did not capture them in the first place.
Multiple over-exposed and under-exposed images can.
The human eye is capable of viewing around 21 stops of dynamic range, which the best cameras can capture approximately 16 at the lowest ISO setting.
A five-stop difference might not sound like that much, but you have to consider how much information is lost at both ends of the spectrum. Comparing the same scene with your eyes and with the final image, you’ll be able to pick up a lot more detail in person than the camera will be able to. The best way to come close to matching what our eyes can see is to use HDR photography.
An HDR image captures more colors than a single exposure ever could. Most cameras can only take 8-bit images with just 256 colors. (That’s 2^8 for the nerds in the room). But the final HDR image will essentially hold 32-bits of color information, which amounts to more than 4 billion colors.
|