Canon EF lenses
E772196
Canon EF lenses are a widely used family of autofocus SLR camera lenses introduced by Canon in 1987 for its EOS system, known for their electronic lens mount and extensive range from consumer to professional optics.
All labels observed (13)
How this entity was disambiguated
This entity first appeared as the object of triple T9000427 — 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: Canon EF lenses Context triple: [Sony E-mount, canUseViaAdapter, Canon EF lenses]
-
A.
Canon EOS
Canon EOS is a popular line of Canon digital single-lens reflex and mirrorless cameras widely used by both enthusiasts and professional photographers.
-
B.
Sony G Master lenses
Sony G Master lenses are Sony’s premium line of full-frame E-mount lenses known for their exceptional sharpness, advanced optics, and professional-grade build quality.
-
C.
Canon 70
Canon 70 is a decree issued by the Fourth Lateran Council in 1215, addressing ecclesiastical discipline and reform within the medieval Catholic Church.
-
D.
Canon 28
Canon 28 is a decree of the Council of Chalcedon that elevated the See of Constantinople to a position of primacy second only to Rome, reshaping the hierarchy of the early Christian Church.
-
E.
Sony E-mount
Sony E-mount is a lens mount system developed by Sony for its mirrorless interchangeable-lens cameras and camcorders, known for its short flange distance and wide compatibility with various lenses.
- 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: Canon EF lenses Target entity description: Canon EF lenses are a widely used family of autofocus SLR camera lenses introduced by Canon in 1987 for its EOS system, known for their electronic lens mount and extensive range from consumer to professional optics.
-
A.
Canon EOS
Canon EOS is a popular line of Canon digital single-lens reflex and mirrorless cameras widely used by both enthusiasts and professional photographers.
-
B.
Sony G Master lenses
Sony G Master lenses are Sony’s premium line of full-frame E-mount lenses known for their exceptional sharpness, advanced optics, and professional-grade build quality.
-
C.
Canon 70
Canon 70 is a decree issued by the Fourth Lateran Council in 1215, addressing ecclesiastical discipline and reform within the medieval Catholic Church.
-
D.
Canon 28
Canon 28 is a decree of the Council of Chalcedon that elevated the See of Constantinople to a position of primacy second only to Rome, reshaping the hierarchy of the early Christian Church.
-
E.
Sony E-mount
Sony E-mount is a lens mount system developed by Sony for its mirrorless interchangeable-lens cameras and camcorders, known for its short flange distance and wide compatibility with various lenses.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
camera lens mount system
ⓘ
interchangeable camera lens family ⓘ |
| communication | all-electronic lens mount ⓘ |
| compatibleWith |
Canon EOS digital SLR cameras
ⓘ
linked to:
Canon EOS
Canon EOS film cameras ⓘ
linked to:
Canon EOS
|
| designedFor |
35 mm film SLR cameras
ⓘ
APS-C digital SLR cameras ⓘ full-frame digital SLR cameras ⓘ single-lens reflex cameras ⓘ |
| feature |
electronic aperture control
ⓘ
electronic focus drive ⓘ integrated autofocus motor in lens ⓘ |
| flangeFocalDistance | 44.0 mm ⓘ |
| focusType | autofocus ⓘ |
| hasRange |
consumer lenses
ⓘ
professional lenses ⓘ prosumer lenses ⓘ |
| hasSubfamily |
Canon EF-M lenses
ⓘ
Canon EF-S lenses ⓘ
linked to:
Canon EF-S lens mount
Canon L-series lenses ⓘ
linked to:
Canon EF lenses
|
| includes |
Canon EF 100-400mm f/4.5-5.6L lens
ⓘ
linked to:
Canon EF lenses
Canon EF 100mm f/2.8 Macro lens ⓘ
linked to:
Canon EF lenses
Canon EF 16-35mm f/2.8L lens ⓘ
linked to:
Canon EF lenses
Canon EF 24-70mm f/2.8L lens ⓘ
linked to:
Canon EF lenses
Canon EF 400mm f/2.8L lens ⓘ
linked to:
Canon EF lenses
Canon EF 50mm f/1.8 lens ⓘ
linked to:
Canon EF lenses
Canon EF 600mm f/4L lens ⓘ Canon EF 70-200mm f/2.8L lens ⓘ
linked to:
Canon EF lenses
Canon EF 85mm f/1.2L lens ⓘ |
| introduced | 1987 ⓘ |
| manufacturer | Canon Inc. ⓘ |
| marketedAs |
EF (Electro-Focus) lenses
ⓘ
linked to:
Canon EF lenses
|
| mountDiameter | 54 mm ⓘ |
| mountType |
Canon EF mount
ⓘ
linked to:
Canon EF lens mount
|
| notableFeature | large catalog of focal lengths and apertures ⓘ |
| notCompatibleWith | Canon FD mount cameras ⓘ |
| partOf |
Canon EOS system
ⓘ
linked to:
Canon EOS
|
| replaced |
Canon FD lenses
ⓘ
linked to:
Canon FD lens mount
|
| supports |
Nano USM focusing in some lenses
ⓘ
image stabilization in some lenses ⓘ manual focus ⓘ stepper motor (STM) focusing in some lenses ⓘ ultrasonic motor (USM) focusing in some lenses ⓘ |
| usedFor |
amateur photography
ⓘ
landscape photography ⓘ macro photography ⓘ portrait photography ⓘ professional photography ⓘ sports photography ⓘ video production ⓘ wildlife photography ⓘ |
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: Canon EF lenses Description of subject: Canon EF lenses are a widely used family of autofocus SLR camera lenses introduced by Canon in 1987 for its EOS system, known for their electronic lens mount and extensive range from consumer to professional optics.
Referenced by (16)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Canon EF lenses
linked to: Canon EF lenses
linked to: Canon EF lenses
linked to: Canon EF lenses
linked to: Canon EF lenses
linked to: Canon EF lenses
linked to: Canon EF lenses
linked to: Canon EF lenses
linked to: Canon EF lenses
linked to: Canon EF lenses
linked to: Canon EF lenses
linked to: Canon EF lenses