What's worse, the tops of the buildings are cropped after the correction. This once happened to me and it became the starting point for this app: an app that does perspective correction automatically, in real-time. Introducing Ortho: - Apply automatic, real-time perspective correction while shooting - Supports 2x zoom on devices with dual camera. - Add grid lines to assist composition. - View out-of-frame regions and frame with precision. - Multiple aspect ratios to choose from. - Set aspect ratio to "None" and save trapezoid-shape photos for post-cropping. - Useful tools: angle display, level, histogram. By a photographer, for photographers.