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In photography and cinematography, a normal lens is a lens that reproduces a field of view that appears "natural" to a human observer. In contrast, depth compression and expansion with shorter or longer focal lengths introduces noticeable, and sometimes disturbing, distortion.
Mimicking human vision, Typical normal focal lengths for different formats & Perspective effects of short or long focal-length lenses
Explore the main themes, entities and connections around Normal lens. Start with the topic map, then use the sections below for research and deeper semantic analysis.
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focal normal lens length mm view lenses image human angle camera vision film perspective lengths sensor photography distortion eye 50
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Normal lens | is a | lens that reproduces a field of view that appears | 0.90 | text |
| Normal lens | related to 'Normal' lenses vary for different formats | For | 0.60 | section |
| Normal lens | related to 'Normal' lenses vary for different formats | The | 0.60 | section |
| Normal lens | related to 'Normal' lenses vary for different formats | This | 0.60 | section |
| Normal lens | related to Digital still | In | 0.60 | section |
| Normal lens | related to Digital still | These | 0.60 | section |
| Normal lens | related to Digital still | VCT | 0.60 | section |
| Normal lens | related to Digital still | The | 0.60 | section |
| Normal lens | related to Film still | Typical | 0.60 | section |
| Normal lens | related to Film still | For | 0.60 | section |
| Normal lens | related to Film still | The | 0.60 | section |
| Normal lens | related to Film still | Oskar Barnack | 0.60 | section |
These clusters group vocabulary that occurs around closely connected concepts in the source material.
Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.