Studio Biederer (also known as Biederer Studio) was a French studio for erotic photography, managed by the Czech brothers Jacques Biederer (born 1887; died c. 1942) and Charles Biederer (born 1892; died c. 1942).
Very closely related to Studio Biederer was the quasi-distinct Ostra Studio, founded in an attempt to create a separate publishing house.[1] In practice, however, Ostra Studio only ever functioned as a subdivision of Studio Biederer, with both studios referred to as separate yet intertwined divisions under a single management that effectively functioned as Studio Biederer.[1][2] Although identifying works by Jacques Biederer is not difficult, distinguishing between those published by Studio Biederer and those specifically produced under the Ostra Studio label is more challenging.[1]
The primary content of Biederer/Ostra was female nudes, female bondage and erotic spanking. Erotic spanking images were predominantly all female, although some were produced that featured men spanking women and women spanking men.[2]