The iScope Video Zoom app allows users to video & zoom at the same time live in HD resolution. Now take smooth videos without jitters or jumps while being able to zoom in and out while you record. Fast rendering. Tap screen to refocus/exposure. This app is compatible with iPod Touch 4G, iPhone 3GS, iPhone 4, iPhone 4S, iPhone 5 and others. This app is also designed to work with the iScope Smartphone Scope Adapter found at www.iscope.com which allows users to attach their Smartphone straight to their firearm scope, spotting scope, crossbow scope, pistol scope, telescope and more. Now users can see a new full screen view which makes shooting easier, safer, with better accuracy and the option of filming your hunt from the eye of the shooter