PURPOSE: To enlarge a range where short distance photographing can be executed by an autofocusing device as large as possible in accordance with a stop value at the time of photographing, the sensitivity value of a film and the focal distance of a photographing lens. ;CONSTITUTION: By ...
to the markings is exposed on the film simultaneously with taking the picture. This coding is optically scanned in the automatic elnarger and the enlarging lens controlled for opening and focussing so that the selected section fills the whole format of the photographic paper on diapositive. ...
When the luminaire irradiating on the photographs which are inserted at the negative film positions, the photograph image can be refracted on the photographic paper and can image through the lens. So the positive image photograph can be duplicated with inserting the negative image photograph into ...
and operates cam-controlled automatic focusing means, and the carriage also carries means for manually moving the camera lens bodily to focus the apparatus independently of the cam-controlled means, the image table is provided with means for separate continuous adjustment of its position to accommodate...
31, 1938. [Classes 98 (i) and 98 (ii)] A photographic enlarging apparatus comprises a fixed focus camera having a front tubular extension member carrying locating means for a detachable negative support comprising selectively an apertured plate member or a film holder, a clamping element for ...