Canon EF-S lens mount
E772865
The Canon EF-S lens mount is a camera lens interface designed by Canon specifically for its APS-C sensor EOS digital SLR cameras, supporting smaller, lighter lenses optimized for crop-sensor bodies.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Canon EF-S lens mount canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9000562 — 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-S lens mount Context triple: [Canon EOS, uses, Canon EF-S lens mount]
-
A.
Canon EF lens mount
The Canon EF lens mount is Canon's autofocus-enabled bayonet mount system introduced in 1987 for its EOS series cameras, supporting a wide range of interchangeable lenses for both film and digital SLRs.
-
B.
Canon EF lenses
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.
-
C.
Sony A-mount
Sony A-mount is a lens mount system originally developed by Minolta and later adopted by Sony for its DSLR and SLT cameras, supporting a wide range of autofocus A-mount lenses.
-
D.
Fujifilm X-mount
Fujifilm X-mount is Fujifilm’s interchangeable lens mount system designed for its APS-C mirrorless digital cameras, supporting a wide range of XF and XC lenses.
-
E.
Nikon F-mount DSLR system
The Nikon F-mount DSLR system is Nikon’s long-standing line of digital single-lens reflex cameras and lenses built around the historic F lens mount introduced in 1959.
- 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-S lens mount Target entity description: The Canon EF-S lens mount is a camera lens interface designed by Canon specifically for its APS-C sensor EOS digital SLR cameras, supporting smaller, lighter lenses optimized for crop-sensor bodies.
-
A.
Canon EF lens mount
The Canon EF lens mount is Canon's autofocus-enabled bayonet mount system introduced in 1987 for its EOS series cameras, supporting a wide range of interchangeable lenses for both film and digital SLRs.
-
B.
Canon EF lenses
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.
-
C.
Sony A-mount
Sony A-mount is a lens mount system originally developed by Minolta and later adopted by Sony for its DSLR and SLT cameras, supporting a wide range of autofocus A-mount lenses.
-
D.
Fujifilm X-mount
Fujifilm X-mount is Fujifilm’s interchangeable lens mount system designed for its APS-C mirrorless digital cameras, supporting a wide range of XF and XC lenses.
-
E.
Nikon F-mount DSLR system
The Nikon F-mount DSLR system is Nikon’s long-standing line of digital single-lens reflex cameras and lenses built around the historic F lens mount introduced in 1959.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Canon lens mount
ⓘ
camera lens mount ⓘ |
| abbreviationExpansion | Electro-Focus Short back focus NERFINISHED ⓘ |
| alignmentMarkColor | white ⓘ |
| allows |
lighter lenses
ⓘ
shorter back-focus designs ⓘ smaller lenses ⓘ |
| alsoUsedFor | video recording on DSLR bodies ⓘ |
| backwardCompatibility | accepts Canon EF lenses ⓘ |
| basedOn | Canon EF lens mount NERFINISHED ⓘ |
| brand | Canon EOS NERFINISHED ⓘ |
| compatibleSensorFormat | APS-C ⓘ |
| designedForCropFactor | 1.6x ⓘ |
| designer | Canon Inc. NERFINISHED ⓘ |
| EFAlignmentMarkColor | red ⓘ |
| electricalContacts | same as Canon EF mount ⓘ |
| flangeFocalDistance | 44.0 mm ⓘ |
| forwardCompatibility | EF-S lenses not usable on full-frame EF bodies ⓘ |
| introducedBy | Canon EOS 300D NERFINISHED ⓘ |
| introducedInYear | 2003 ⓘ |
| manufacturer | Canon Inc. NERFINISHED ⓘ |
| marketPosition | consumer and enthusiast APS-C segment ⓘ |
| mountStandard | Canon EF family NERFINISHED ⓘ |
| mountType | bayonet ⓘ |
| namingMeaning | Short back focus ⓘ |
| notCompatibleWith |
Canon EOS film SLR bodies
NERFINISHED
ⓘ
Canon full-frame EOS DSLRs without modification ⓘ |
| optimizedFor | APS-C image circle ⓘ |
| partOf | Canon EOS system NERFINISHED ⓘ |
| physicalKeying | prevents mounting on most full-frame EF cameras ⓘ |
| primaryUse | still photography ⓘ |
| region | global ⓘ |
| supportsAutofocus | true ⓘ |
| supportsElectronicApertureControl | true GENERATED ⓘ |
| supportsFocusingModes |
autofocus
GENERATED
ⓘ
manual focus GENERATED ⓘ |
| supportsImageStabilizationCommunication | true GENERATED ⓘ |
| supportsLensCPUCommunication | true GENERATED ⓘ |
| supportsLensTypes |
macro lenses
GENERATED
ⓘ
prime lenses GENERATED ⓘ ultra-wide-angle lenses GENERATED ⓘ zoom lenses GENERATED ⓘ |
| typicalFocalLengthRange | wide-angle to telephoto for APS-C GENERATED ⓘ |
| usedByCameraSeries |
Canon EOS 10D successor models with APS-C sensors
ⓘ
Canon EOS 7D series NERFINISHED ⓘ Canon EOS Rebel series NERFINISHED ⓘ Canon EOS xx0D series NERFINISHED ⓘ Canon EOS xxD APS-C series NERFINISHED ⓘ |
| usedOn | Canon APS-C DSLR cameras 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: Canon EF-S lens mount Description of subject: The Canon EF-S lens mount is a camera lens interface designed by Canon specifically for its APS-C sensor EOS digital SLR cameras, supporting smaller, lighter lenses optimized for crop-sensor bodies.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.