The Onsight 3D is an easy to use, free of charge, non-watermarked Final Cut Pro 3D plugin that allows Mac OS X users to edit quickly and easily stereoscopic 3D video. The plugin offers easy access to the most common 3D correction control that you might need when importing stereo 3D content – horizontal and vertical alignment, keystone correction, scale and rotation adjustment, sync adjustment and flipping. With the Onsight OS 3D you can import two separate streams for left and right or a Side by Side format videos and export in Side by Side, Anaglyph or separate left and right streams. The OS 3D plugin only works with 1920×1080 HD files and is compatible with FCP 7, earlier versions of FCP may also be supported, but it is not compatible with the latest Final Cut Pro X. This plugin can be an useful addition considering it is a free one, so you can try it out if you work on Mac and use Final Cut Pro for editing. Of course there are other commercial alternatives also available that offer a lot more functionality such as the Stereo3D Toolbox from Dashwood Cinema Solutions for example, so you might want to also check it out.