More on FAQ #811
811. How do TCQ photographers make “perspective-corrected” photographs if they can’t reshape things after the photo is recorded?
The same way perspective correction has been done since photography was invented:
by keeping the sensor/film plane parallel to the subject* and using only a portion of the camera’s image circle.
This can be achieved
• by using a wide-angle lens and cropping out any undesired portion of the result; or
• with a shift [rise] “PC” lens; or
• with a view camera.
*Since most buildings are exactly vertical, when vertical perspective correction is desired, the sensor/film plane is also kept exactly vertical (that is, “parallel to the subject”).
The same principle — keeping the sensor/film plane parallel to the subject — works for horizontal perspective correction, although that effect is less commonly seen outside of product photography.