noun
twin-lens reflex camera; TLR camera
A camera with two lenses: one for viewing and focusing, the other for taking the picture. Often associated with medium-format film photography.
祖父が使っていた二眼レフカメラで写真を撮ってみた。
I tried taking a picture with the twin-lens reflex camera my grandfather used.
A single-lens reflex camera, which uses one lens for both viewing and taking the picture via a mirror. More common in modern photography.
Compound of 二眼 (にがん, 'twin-lens') and レフカメラ, an abbreviation of レフレックスカメラ (reflex camera).