# SLR

CEFR C1 · Noun

Source: https://englishreference.com/word/slr
Updated: 2026-05-18

## Definition

Stands for Single Lens Reflex. A type of camera that uses a mirror to let you see exactly what the lens sees through the viewfinder.

For teachers: Abbreviation for Single Lens Reflex. A camera system in which light entering the lens is reflected by a mirror to a pentaprism before reaching the viewfinder, allowing the photographer to see exactly what the lens captures.

## Examples

- He prefers using an SLR for professional photography.
- Many professional photographers still use an SLR because of its superior image quality and manual controls.
- While digital cameras have largely replaced film-based SLRs, the mechanical design of the mirror system remains a benchmark for optical clarity and manual precision in high-end photography.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.