A photographic film with a row of sprocket holes formed along each edge thereof includes one or more sensitometric step wedges of different light intensity values exposed adjacent one of the rows of sprocket holes on the photosensitive emulsion surface of the film. The light intensity values from one or more of the weges are sensed, and a film process may be adjusted in accordance with the sensed values.

 
Web www.patentalert.com

> Processing device of photo-sensitive material

~ 00367