Effective Film Speed

Views Updated: Dec 15, 2025

Key Facts

Abbreviation

EFS

Pronunciation

/ˈifɛktɪv fɪlm spid/

Category

Miscellaneous

Related Field

Unclassified

Other meanings of EFS

English French Spanish Intl

Enhanced Fujita [EF] scale (weather) Academic

Encrypting File System Computing

Encrypted File System Misc

Event-Free Survival Medical

English for Foreign Students Academic

time from diagnosis to defined events (e.g. , relapse or dea Medical

Extent File System Misc

Electronic Filing System Academic

Electronic Fund Systems Business