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How should a 'normal' lens for a film camera system 'officially' be determined?

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1. How should a 'normal' lens for a film camera system 'officially' be determined?

1. Lens distortion - obtained with different focal lengths 2. The photographer's point of view. Ex. the alignment of an object to a reference point in a midrange shot. For instance, taking a picture in such a way that the gun looks closer to the wall than it is, when using the isosceles triangle method should have been used.
By using the diagonal of the film negative. However, the diagonal in 35mm cameras is 43mm and the camera industry insists on saying that the 50m is the correct lens.
An effect of using a telephoto lens. The result is that straight lines appearing at the edge of an image may appear to be bent 'inward'. This is opposite of Barrel Distortion.
Use 2mm of lens for every foot of distance between the camera and the subject.

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How should a 'normal' lens for a film camera system 'officially' be determined?

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All trademarks, logos and brand names are the property of their respective owners. All company, product and service names used in this website are for identification purposes only. Use of these names, trademarks and brands does not imply endorsement.

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Privacy | Terms |

Without work one finishes nothing. - Ralph Waldo Emerson
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