The DC240 has an ISO rating of 140 and is fitted with a lens giving an equivalent focal length of 39-117mm on a 35mm camera.
What does EF stand for?
EF stands for Equivalent Focal Length
This definition appears very frequently and is found in the following Acronym Finder categories:
- Science, medicine, engineering, etc.
See other definitions of EF
We have 36 other meanings of EF in our Acronym Attic
- Enrichment Factor
- Enterprise Framework
- Entity Framework (software)
- Entry Fee
- Environmental Factor (The Olewine Company)
- Environmentally Friendly (various organizations)
- Ephedrine Free (thermogenic formula)
- Epic Fail (Internet slang)
- Equifax (credit reporting agency)
- Equipment Failure (Wandel Goltermann)
Samples in periodicals archive:
The PL200 also incorporates a powerful 7x optical zoom lens (35mm film equivalent focal length of 31mm-217mm) that puts consumers in the middle of the action.
8 IS USM lens has a 35mm equivalent focal length of 27-88mm and is compatible only with the EOS 30D, EOS 20D, EOS Digital Rebel XT and EOS Digital Rebel SLRs.