HDR photos with the GIMP

Step 3Take your stock photos

Take your stock photos
For this step you will need:
- A digital camera with the ability to set aperture/shutter speed, to control the exposure
- A good sturdy tripod- this will save you a lot of trouble later

For the image editing, you will just need access to a computer with the GIMP, Photoshop or a similar layered image editing program. The specifics of this instructable will focus on the GIMP- Photoshop is very similar, but I can't speak for other software.

Find your subject- ideally it will have a high range of lighting, and not be moving too quickly- if the photos don't match up your finished image will look a little odd. Keeping this in mind, I took my photos of some trees that were blowing in the wind.

Compose your shot, and take several photos at a range of different exposures. The basic requirements for this process are one exposed as best you can, one about 1 stop overexposed (+1EV) and one about 1 stop underexposed (-1EV). If your camera has an EV meter, you can experiment with what works best, but if it doesn't just take enough to get one where the shadows expose properly and one where the highlights expose properly. Ideally, take the photos with a remote shutter release to avoid jogging the tripod- if you do this you shouldn't have to line the photos up at all later.
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1 comment
Jun 2, 2010. 9:23 AMdscotthep says:
Many (even most?) digital cameras will do 'exposure bracketing'.  They will automatically take three pictures; one at the [camera determined] optimal exposure, one over-exposed and one under-exposed. 

This is an easy way to get your shots without a lot of the work.

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