Fortunately, for all of us who want to try creating a tilt-shift image without breaking the back, there is an easy solution.
If you’re using Lightroom to edit your photos, you can turn them into tilt-shift images with very little effort. It’s a simple process, and as long as you pay attention to the perspective when you’re shooting the images, these edits will give you very authentic looking results.
Set up Grad filter Load up your image into Lightroom and go to the Develop module. Click on the Graduated Filter tool just the under the Histogram graph. Set the Sharpness slider to -100 inside the list of adjustments.
Apply Grad filter To apply the filter, click and drag from the centre of the image downwards. Apply a second Grad filter just below the first and drag it in the opposite direction to make a strip of in-focus pixels.
Double up Grad filters Place another set of Grad filters on top by repeating Step 2. Make these larger so as to create more blurring over the background and foreground areas to replicate a perspective-control effect.
Tweak blur positionCarefully position the gradients so that they reveal just enough of the image for the best possible effect.
To give the image even more of that typical toy-camera look, you can also boost the colors, add contrast and bring up the highlights. If these adjustments seem to add more noise into the photo, use the Noise reduction.
Source: Digital Photographer