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2. Perspective control - Wikipedia

   en.wikipedia.org/wiki/Perspective_control

   Perspective control. Perspective control is a procedure for composing or editing photographs to better conform with the commonly accepted distortions in constructed perspective. The control would: make all lines that are vertical in reality vertical in the image. This includes columns, vertical edges of walls and lampposts. This is a commonly ...

3. Digital Photo Professional - Wikipedia

   en.wikipedia.org/wiki/Digital_Photo_Professional

   Screenshot of Canon DPP version 4.4.0 on Windows. Digital Photo Professional ( DPP) is the software that Canon ships with its digital SLR (and some of its compacts, e.g. the Canon PowerShot S90) cameras for editing and asset management of its Canon raw (.CR2) files. It can also work with the older .CRW format of selected models, and also JPEGs ...

4. Prism correction - Wikipedia

   en.wikipedia.org/wiki/Prism_correction

   Prism dioptres. Prism correction is commonly specified in prism dioptres, a unit of angular measurement that is loosely related to the dioptre. Prism dioptres are represented by the Greek symbol delta (Δ) in superscript. A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. [2]

5. Distortion (optics) - Wikipedia

   en.wikipedia.org/wiki/Distortion_(optics)

   Distortion (optics) Not to be confused with spherical aberration, a loss of image sharpness that can result from spherical lens surfaces. In geometric optics, distortion is a deviation from rectilinear projection; a projection in which straight lines in a scene remain straight in an image. It is a form of optical aberration .

6. Magic Lantern (firmware) - Wikipedia

   en.wikipedia.org/wiki/Magic_Lantern_(firmware)

   Magic Lantern is a firmware add-on for various Canon digital single-lens reflex (DSLR) cameras and the EOS M. [2] It adds features for DSLR filmmaking and still photography, and is free and open-source. Magic Lantern was originally written for the Canon EOS 5D Mark II [3] by Trammell Hudson in 2009 after he reverse engineered its firmware. [1]

7. DxO ViewPoint - Wikipedia

   en.wikipedia.org/wiki/DxO_ViewPoint

   DxO ViewPoint is image geometry and lens defect correction software developed by DxO. It is designed to automatically straighten distorted perspectives caused by the lens used and the position of the photographer.