noun
half-frame camera
A camera that takes half-frame photos, exposing half the standard 35mm frame per shot. Wasei-eigo; the English term 'half-size camera' is not standard.
wasei-eigo (Japanese-coined English), from half-size camera
ハーフサイズカメラで撮ると、フィルム1本で倍の枚数が撮れる。
With a half-frame camera, you can take twice as many shots on one roll of film.
Variant with interpunct; less common but still seen.
A full-frame camera, using the full 35mm frame; opposite of half-frame.
Wasei-eigo from English 'half-size' + 'camera'. The English term 'half-size camera' is not standard; the usual English term is 'half-frame camera'.