Lensless cameras are imaging devices that capture pictures without traditional lenses. Instead of focusing light through a lens, they use alternative methods, such as computational imaging, to create images. This technology often relies on sensors and algorithms to reconstruct the image from raw data, allowing for unique designs and potentially smaller devices. These cameras can be beneficial in various fields, including medical imaging and robotics, where compact size and flexibility are essential. By eliminating lenses, lensless cameras can also reduce optical aberrations and improve image quality in certain applications, making them an exciting area of research in photography and imaging technology.