Carl Zeiss Tessar
E950060
Carl Zeiss Tessar is a classic high-quality photographic lens design, renowned for its sharpness and compact construction and widely used in cameras and mobile devices.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Carl Zeiss Tessar canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11830623 — 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: Carl Zeiss Tessar Context triple: [Nokia 808 PureView, lensType, Carl Zeiss Tessar]
-
A.
Carl Zeiss optics
Carl Zeiss optics refers to the high-quality camera lens technology developed by the German manufacturer Carl Zeiss, renowned for its precision and use in premium imaging devices.
-
B.
Kienzle
Kienzle is the original German family name of American film director Nicholas Ray, known for works like "Rebel Without a Cause."
-
C.
ZEISS
ZEISS is a renowned German optics company best known for its high-quality lenses and imaging technologies used in cameras, microscopes, and industrial systems.
-
D.
Cooke
Cooke is a surname of English origin, often considered a variant spelling of "Cook."
-
E.
Barlow lenses
Barlow lenses are optical accessories used in telescopes to effectively increase focal length and magnification by diverging the light path before it reaches the eyepiece.
- 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: Carl Zeiss Tessar Target entity description: Carl Zeiss Tessar is a classic high-quality photographic lens design, renowned for its sharpness and compact construction and widely used in cameras and mobile devices.
-
A.
Carl Zeiss optics
Carl Zeiss optics refers to the high-quality camera lens technology developed by the German manufacturer Carl Zeiss, renowned for its precision and use in premium imaging devices.
-
B.
Kienzle
Kienzle is the original German family name of American film director Nicholas Ray, known for works like "Rebel Without a Cause."
-
C.
ZEISS
ZEISS is a renowned German optics company best known for its high-quality lenses and imaging technologies used in cameras, microscopes, and industrial systems.
-
D.
Cooke
Cooke is a surname of English origin, often considered a variant spelling of "Cook."
-
E.
Barlow lenses
Barlow lenses are optical accessories used in telescopes to effectively increase focal length and magnification by diverging the light path before it reaches the eyepiece.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
camera lens
ⓘ
photographic lens design ⓘ |
| alsoKnownAs | Eagle Eye NERFINISHED ⓘ |
| basedOn |
Zeiss Protar design principles
ⓘ
Zeiss Unar design ⓘ |
| correctsAberration |
astigmatism
ⓘ
field curvature ⓘ spherical aberration ⓘ |
| countryOfOrigin | Germany ⓘ |
| designer | Paul Rudolph NERFINISHED ⓘ |
| designGoal |
compact size
ⓘ
high image quality with few elements ⓘ low production cost ⓘ |
| hasCoating |
Zeiss T coating
ⓘ
Zeiss T* multicoating NERFINISHED ⓘ |
| hasLensType |
anastigmat
ⓘ
fixed focal length lens ⓘ |
| hasNotableFeature |
cemented rear doublet
ⓘ
good performance at medium apertures ⓘ relatively flat field ⓘ |
| hasUsagePeriod |
20th century
ⓘ
21st century ⓘ |
| inception | 1902 ⓘ |
| influenced | later compact lens designs ⓘ |
| knownFor |
compact construction
ⓘ
high contrast ⓘ high sharpness ⓘ simple optical design ⓘ |
| manufacturer | Carl Zeiss AG NERFINISHED ⓘ |
| numberOfElements | 4 ⓘ |
| numberOfGroups | 3 ⓘ |
| opticalFormulaType |
four-element lens
ⓘ
three-group lens ⓘ |
| patentHolder | Carl Zeiss AG NERFINISHED ⓘ |
| patentYear | 1902 ⓘ |
| typicalFocalLengths |
40 mm
GENERATED
ⓘ
45 mm GENERATED ⓘ 50 mm GENERATED ⓘ 80 mm GENERATED ⓘ |
| typicalMaximumApertures |
f/2.8
GENERATED
ⓘ
f/3.5 GENERATED ⓘ f/4.5 GENERATED ⓘ |
| usedIn |
35 mm film cameras
ⓘ
Contax cameras NERFINISHED ⓘ Sony mobile devices NERFINISHED ⓘ Zeiss Ikon cameras ⓘ compact cameras ⓘ large format cameras ⓘ medium format cameras ⓘ mobile phone cameras ⓘ |
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: Carl Zeiss Tessar Description of subject: Carl Zeiss Tessar is a classic high-quality photographic lens design, renowned for its sharpness and compact construction and widely used in cameras and mobile devices.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.