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The Prentice position is an orientation of a prism, used in optics, optometry and ophthalmology. In this position, named after the optician Charles F. Prentice , the prism is oriented such that light enters it at an angle of 90° to the first surface, so that the beam does not refract at that surface.
DxO ViewPoint was released on September 5, 2012, and featured tools to allow users to correct keystoning and volume distortions. It was launched as a standalone application for MacOS and Windows , and also as a plugin for Adobe Photoshop CS3 , CS4 , CS5 , CS6 , and Adobe Photoshop Lightroom 3 and 4.