The PANOLUX EXPOSURE MODULE, affixed to the top of the camera via a " hot Shoe " type of mount, automates and varies exposures in three different modes of operation.
MODE 1. STANDARD EXPOSURE MODE:
In this mode of operation, the PANOLUX operates as a reflected exposure meter. Also, Mode # 1 makes the camera operate in Aperture Priority. After the PANOLUX is attached and programmed, rotation of the lens/drum is automatically controlled, with the PANOLUX choosing the correct drum rotational speed. Speeds are stepless, and therefore the camera is not locked into only the shutter speeds shown on the shutter speed selector dial.
MODE 2. VARIED EXPOSURE MODE:
In the Varied Exposure Mode, the PANOLUX operates as an incident meter. A single reading is taken and locked into the memory of the exposure module. When the shutter release button is depressed, and the lens/drum begins it's rotation, the memorized light measurement will cause the rotation of the drum mechanism to either slow down, in the case of a " cool " or darker area of the subject to be photographed, or speed up, in the case of a " hot " or brighter area of the subject to be photographed. This slowing down/speeding up of the lens/drum helps greatly to even out the overall exposure. Of course, there are no " seams " visible when this exposure compensation takes place. Exposure graduations from the darkest area to the lightest area will be a total of 3/4 of a stop. ( Best utilized with chrome film because of the narrow latitude of the film. )
MODE 3. INVERSE MODE:
In the Inverse Mode, the PANOLUX operates again as an incident exposure meter. A single reading is taken and locked into the memory of the Exposure Module. As in most verticals, taken with panoramic cameras, the sky portion of the photograph will tend to be more overexposed than the rest of the photograph. Also, the foreground portion of the photograph will tend to be darker, or undexposed. When utilizing the inverse mode, of the PANOLUX, the rotation of the lens/drum is speeded up during the first 1/2 of the exposure and slowed down during the second 1/2 of the exposure, therefore evening out the entire exposure. As in the Varied Exposure Mode, the total exposure compensation equals 3/4 of a stop.
