Photographic studio

cartoon from Punch magazine image by John Leech {{ (Image rights)}}

The early daguerreotype photography was optimal for achitecture because many early cameras had a kind of landscape lens which needed usage at small aperture, thus allowing only exposure times of ten minutes even in the sunshine. Soon there was a solution available soon, the fast Petzval lens which reduced exposure times to 30 seconds. This was still much time to keep still for the photographic model. Photographers had to avoid situations in which wind blew thru hair and dress of the portrayed person, or cold weather caused the model to shiver. Thus closed but light rooms were necessary, often wide rooms with glass roof. The Punch cartoon above shows a cat looking thru the studio's glass roof. Seems to have been a typical location, with the artistic studio or "photographic studio" in a huge attic.