Thanks

Though infrared shots are relatively common, the mod is not. With a digital SLR, you can do IR in two ways: The first is to buy an infrared filter for your lens (I have the Hoya R72). You line up and focus the shot, then screw on the filter (it blocks all visible light, so it's imperative to set up the shot first). After that, use the camera's metering and shoot. The problem is that nearly all dSLRs have very effective IR blocking filters, so your exposure times may be as low as 1-2 seconds, but are likely much longer.
The second is the IR conversion. This, of course, ruins the camera for any other type pf shot, but allows hand-held IR photography at fast shutter speeds. In either process, at this point, you pull the RAW image (using RAW is essential) into your editor of choice (I use Lightroom here). Pick the white balance on grass, leaves, or a cloud. You should see something closer to these images at that point. Next, I go into split toning and set the highlights such that they show up as pure white, and the shadows so they show up as that reddish brown tobacco color. At that point, it goes into Photoshop for normal editing.
There are ways to approximate this effect in Photoshop, but none of them really look quite right. Capturing an IR image is really the only way to end up with this effect.