Tactile photography generally refers to creating photographs as raised-relief images so they can be explored by touch, often for blind or visually impaired viewers. It’s less a standard shooting technique and more a specialized way of processing and printing an image.

Your Canon 550D and lenses are fine for capturing source images. The main challenge is not the camera, but producing a tactile output. You would need a printing or fabrication method that can create depth or raised surfaces.

From the answers provided, there are two broad ways to prepare the image:

• derive a depth effect from image features such as edges/sharpness, similar to an emboss-style interpretation
• create or estimate a depth map from stereoscopic images

But the hardest part is the final print: you need a process that supports 3D or raised-relief output. So no ordinary camera accessory is required to begin experimenting, but specialized printing or production methods are essential if you want a true tactile result.