Technical Evidence — EF50mm f/1.8 STM

Reservoir facts published for this SKU with provenance URLs and content hashes. Generated by PRODUCTGRAPH_REPUBLISH_OVERLAY_001.

Entity Metadata

Field	Value
Manufacturer or brand	Canon
Entity type	Lens
Product ID	`canon-ef-50-f1-8-stm`
EXTRACTED fact count	21
ABSENT record count (deduped rows shown)	3
Reservoir	`data/product_knowledge_reservoir/`

EXTRACTED reservoir facts (21)

Fact ID	Family	Attribute	Value	Status	Source URL	Hash
`fact:1610ff12e348ef18`	specs	product_name	EF50mm f/1.8 STM - Canon Camera Museum	EXTRACTED	global.canon/en/c-museum/product/ef451.html	`b0f5dae2c543eb00`
`fact:5c0836166185ffb2`	specs	focal_length	50mm	EXTRACTED	global.canon/en/c-museum/product/ef451.html	`8e8858d5cff24b6a`
`fact:6567dbce4f04bc90`	specs	max_aperture	f/1.8	EXTRACTED	global.canon/en/c-museum/product/ef451.html	`34841d888b5a8446`
`fact:0c22b877c650e8f6`	specs	min_aperture	22	EXTRACTED	global.canon/en/c-museum/product/ef451.html	`b01cdd67c7788462`
`fact:69f1615d5610222f`	specs	weight_g	160	EXTRACTED	global.canon/en/c-museum/product/ef451.html	`ede49466e8f18f7d`
`fact:eac8e1fbfa456219`	specs	filter_diameter_mm	49	EXTRACTED	global.canon/en/c-museum/product/ef451.html	`9aa17a4d818a8ff9`
`fact:6421781e1184711a`	specs	closest_focusing_distance_m	0.35	EXTRACTED	global.canon/en/c-museum/product/ef451.html	`e2898a1b62c2e855`
`fact:64d5706396289386`	specs	diaphragm_blades	7 (circular aperture)	EXTRACTED	global.canon/en/c-museum/product/ef451.html	`ac89ac47a1ce0cc6`
`fact:eeff6a666b8dca96`	specs	lens_elements	6	EXTRACTED	global.canon/en/c-museum/product/ef451.html	`555948bf98ba9ffa`
`fact:b3f1b40714b62abd`	specs	lens_groups	5	EXTRACTED	global.canon/en/c-museum/product/ef451.html	`20b4d1ac5eb9b901`
`fact:ceefd962305f9247`	specs	marketed_date	May 2015	EXTRACTED	global.canon/en/c-museum/product/ef451.html	`4ac80028a4225fbc`
`fact:2018332b4b2203c9`	specs	max_magnification	0.21	EXTRACTED	global.canon/en/c-museum/product/ef451.html	`1e6768db91dfe5f8`
`fact:4f1d87879a529a4c`	specs	original_price	19,500 yen	EXTRACTED	global.canon/en/c-museum/product/ef451.html	`9ff3b4015cd208b7`
`fact:32673e715acd99df`	specs	raw_spec:maximum_diameter_x_length_mm	69.2 x 39.3	EXTRACTED	global.canon/en/c-museum/product/ef451.html	`a575a74619fb4b15`
`fact:6fecce6fa5159eda`	manuals	owner_manual_title	Instructions	EXTRACTED	gdlp01.c-wss.com / ef50f18stm-im-eng.pdf	`be65380c3fa4ac45`
`fact:038ab26c60c275f6`	manuals	product_owner_manual_pdf	https://gdlp01.c-wss.com/gds/5/0300019035/01/ef50f18stm-im-eng.pdf	EXTRACTED	my.canon/en/support/0301903501?model=EF50mm+F1.8+STM	`4d176cef6324a529`
`fact:684c28f81c1e440b`	manuals	product_manual_or_document	https://gdlp01.c-wss.com/gds/5/0300019035/01/ef50f18stm-im-eng.pdf	EXTRACTED	my.canon/en/support/0301903501?model=EF50mm+F1.8+STM	`a139a87703aabbaa`
`fact:a068d3f7f39af6bc`	manuals	owner_manual_language	en	EXTRACTED	my.canon/en/support/0301903501?model=EF50mm+F1.8+STM	`4013f840310aeaf4`
`fact:965d7a94b30c2fde`	manuals	owner_manual_type	Owner instruction manual	EXTRACTED	gdlp01.c-wss.com / ef50f18stm-im-eng.pdf	`88c0d7aaf7b5c3fd`
`fact:a63804af0583bc55`	repair	contact_cleaning_guidance	If contacts are soiled or have fingerprints, clean them with a soft cloth; soiled/scratched contacts can cause corrosion or faulty connections	EXTRACTED	gdlp01.c-wss.com / ef50f18stm-im-eng.pdf	`3e2a10d2cbb89c1b`
`fact:4245ac64d532b7b0`	repair	handling_malfunction_precaution	High temperatures can cause the lens to malfunction; do not leave the lens in excessive heat such as in a car in direct sunlight	EXTRACTED	gdlp01.c-wss.com / ef50f18stm-im-eng.pdf	`85f23c94dba03e71`

ABSENT_ON_SOURCE records

Fact ID	Family	Attribute	Status	Checked source
`fact:e08644f4416191dd`	compat	camera_body_or_teleconverter_matrix	ABSENT_ON_SOURCE	global.canon/en/c-museum/product/ef451.html
`fact:cd3cd23a4220c6d4`	repair	error_codes	ABSENT_ON_SOURCE	gdlp01.c-wss.com / ef50f18stm-im-eng.pdf
`gap:synthetic:canon-ef-50-f1-8-stm:error_codes:error_code_table`	error_codes	error_code_table	ABSENT_ON_SOURCE	—