Distagon lens design
E937671
The Distagon lens design is a wide-angle photographic lens formula developed by Carl Zeiss that uses a retrofocus configuration to provide high image quality and minimal distortion, especially for SLR cameras.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Distagon lens design canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11657312 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Distagon lens design Context triple: [Carl Zeiss optics, associatedWith, Distagon lens design]
-
A.
Maksutov–Cassegrain telescope design
The Maksutov–Cassegrain telescope design is a compact catadioptric optical system that uses a spherical primary mirror and a meniscus corrector lens to provide long focal lengths with well-corrected, high-contrast images in a relatively short tube.
-
B.
Dall–Kirkham telescope design
The Dall–Kirkham telescope design is a type of reflecting telescope that uses an elliptical primary mirror and a spherical secondary mirror to provide good on-axis image quality with relatively simple, easy-to-manufacture optics.
-
C.
Hypergonar lens
The Hypergonar lens is an early anamorphic lens system invented by French astronomer and engineer Henri Chrétien that enabled widescreen cinema formats by optically compressing the image horizontally during filming.
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D.
Schmidt–Cassegrain telescope design
The Schmidt–Cassegrain telescope design is a compact catadioptric optical system that combines a spherical primary mirror with a Schmidt corrector plate to provide long focal lengths in a short, portable tube widely used in amateur and professional astronomy.
-
E.
Cassegrain telescope design
The Cassegrain telescope design is a reflecting telescope configuration that uses a combination of a primary concave mirror and a secondary convex mirror to fold the optical path and produce a compact instrument with a long effective focal length.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Distagon lens design Target entity description: The Distagon lens design is a wide-angle photographic lens formula developed by Carl Zeiss that uses a retrofocus configuration to provide high image quality and minimal distortion, especially for SLR cameras.
-
A.
Maksutov–Cassegrain telescope design
The Maksutov–Cassegrain telescope design is a compact catadioptric optical system that uses a spherical primary mirror and a meniscus corrector lens to provide long focal lengths with well-corrected, high-contrast images in a relatively short tube.
-
B.
Dall–Kirkham telescope design
The Dall–Kirkham telescope design is a type of reflecting telescope that uses an elliptical primary mirror and a spherical secondary mirror to provide good on-axis image quality with relatively simple, easy-to-manufacture optics.
-
C.
Hypergonar lens
The Hypergonar lens is an early anamorphic lens system invented by French astronomer and engineer Henri Chrétien that enabled widescreen cinema formats by optically compressing the image horizontally during filming.
-
D.
Schmidt–Cassegrain telescope design
The Schmidt–Cassegrain telescope design is a compact catadioptric optical system that combines a spherical primary mirror with a Schmidt corrector plate to provide long focal lengths in a short, portable tube widely used in amateur and professional astronomy.
-
E.
Cassegrain telescope design
The Cassegrain telescope design is a reflecting telescope configuration that uses a combination of a primary concave mirror and a secondary convex mirror to fold the optical path and produce a compact instrument with a long effective focal length.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
photographic lens design
ⓘ
wide‑angle lens formula ⓘ |
| developer | Carl Zeiss NERFINISHED ⓘ |
| differsFrom | Biogon by having longer back focal distance ⓘ |
| enables |
use of mirror box in SLR cameras
ⓘ
wide‑angle coverage on SLR bodies ⓘ |
| hasAngleOfViewCategory |
ultra‑wide‑angle
ⓘ
wide‑angle ⓘ |
| hasApplication |
architectural photography
ⓘ
interior photography ⓘ landscape photography ⓘ photojournalism ⓘ |
| hasBrandNameUse | Zeiss Distagon NERFINISHED ⓘ |
| hasCommercialName | Distagon GENERATED ⓘ |
| hasConfiguration | inverted telephoto configuration ⓘ |
| hasDesignGoal |
high image quality
ⓘ
minimal distortion ⓘ sufficient back focal distance ⓘ wide angle of view ⓘ |
| hasFocalLengthRange | from ultra‑wide angle to moderate wide angle ⓘ |
| hasHistoricalEra | post‑World War II lens designs ⓘ |
| hasLensType | retrofocus design ⓘ |
| hasManufacturer | Carl Zeiss AG NERFINISHED ⓘ |
| hasOpticalFeature |
large back focal distance
ⓘ
positive rear group ⓘ retrofocus ratio greater than 1 ⓘ strongly negative front group ⓘ |
| hasPrimaryUse |
35 mm SLR cameras
ⓘ
single‑lens reflex cameras ⓘ |
| hasReputationFor |
good corner sharpness
ⓘ
high contrast rendering ⓘ |
| isContrastedWith | Biogon lens design NERFINISHED ⓘ |
| isDesignedFor |
35 mm format
ⓘ
medium format ⓘ |
| isOptimizedFor |
flat field imaging
ⓘ
good correction of astigmatism ⓘ good correction of chromatic aberration ⓘ good correction of coma ⓘ low distortion across the image field ⓘ |
| isPartOf | Zeiss lens naming system ⓘ |
| isSuitableFor |
SLR wide‑angle lenses
ⓘ
cameras with reflex mirror ⓘ |
| isTrademarkOf | Carl Zeiss NERFINISHED ⓘ |
| isUsedIn |
Hasselblad Zeiss lenses
NERFINISHED
ⓘ
Zeiss Classic lenses NERFINISHED ⓘ Zeiss Contax lenses NERFINISHED ⓘ Zeiss Milvus lenses NERFINISHED ⓘ Zeiss ZE lenses NERFINISHED ⓘ Zeiss ZF lenses NERFINISHED ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Distagon lens design Description of subject: The Distagon lens design is a wide-angle photographic lens formula developed by Carl Zeiss that uses a retrofocus configuration to provide high image quality and minimal distortion, especially for SLR cameras.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.