The folks in the Blume Center for Developing Economics have devised a nifty little device that can provide 50x magnification by adding $50 in off-the-shelf components to a cellphone camera. Called the 'Cellscope', this initiative "extends the reach of modern microscopy by turning the camera of a standard cell phone into a clinical-quality microscope. With a magnification of 5-50X, cell-phone microscopy will enable visualization of patient samples critical for disease diagnosis. Images captured by health workers on a microscope-equipped cell phone could be annotated, organized, and transmitted to medical experts at major medical centers for analysis and recommendation. Preliminary work has demonstrated the technical feasibility of this ‘telemicroscopy’ concept." Read More about it here or visit the project page.
Hat tip to Medgadget