Download Camera Perspective Editor FREE Unity. 

Expand Your Camera’s Versatility!
Video Demonstration

Now with custom ScreenPointToRay() and ViewportPointToRay() methods for oblique-orthographic Raycasting!

Powerful & Easy:
• Fully scriptable & animatable
• Shows modified frustum
• Easy to use inspector with descriptions
• Comes with prefabs for common setups
• Easily tweaked for your specific needs
• Works in Orthographic and Perspective modes
• Doesn’t break standard Camera component or controls
• Dolly Zoom (Trombone Effect) without Camera movement. Video