Introduction to Photographic Principles. New York: Dover Publications, Inc. Merklinger, Harold M. 1996. Focusing the View Camera. Bedford, Nova Scotia: Seaboard Printing Limited. . Available for download (PDF). Scheimpflug, Theodor. 1904. Improved Method and Apparatus for the Systematic Alteration or Distortion of Plane Pictures and Images by Means of Lenses and Mirrors for Photography and for other purposes. GB Patent No. 1196. Filed 16 January 1904, and issued 12 May 1904. Available for download (PDF). Tillmanns, Urs. 1997. Creative Large Format: Basics and Applications. 2nd ed. Feuerthalen, Switzerland: Sinar AG. External links View Camera Geometry (PDF) by Leonard Evens. Analysis of the effect of elliptical blur spots on DoF Depth of Field for the Tilted Lens (PDF) by Leonard Evens. A more practical and more accessible summary of View Camera Geometry How to Focus the View Camera by Quang-Tuan Luong. Includes discussion of how to set the plane of focus The Scheimpflug Principle by Harold Merklinger Addendum to Focusing the View Camera (PDF) by Harold Merklinger Unilateral Real-time Scheimpflug Videography to Study Accommodation Dynamics in Human Eyes (PDF) by Ram Subramanian Notes on View Camera Geometry (PDF) by Robert Wheeler Tilt and Shift Lenses: Tailored towards small-format tilt-shift lenses, but principles apply to any format Science of photography Geometrical optics Camera features