We offer iPhone 3,Website:http://www.eyesmed.com, 4, 4s, 5, 5s, 6, 6 plus photograph adapters and iPod touch 3, 4, 5, iPad mini photography adapters for digitalizing your slit lamp. Highlights:Large screenEasy focus and photographyHigh definitionEasy storagecheap price.Compatible with any slit lamp that has a 23.5 +/-0.1mm ocular diameter, together with 3 different kinds of sleeves (6 specifications), it fits 99% slit lamps in the world.Optional: Background illumination