• Rolleiflex 3.5E
• Rolleiflex 3.5F
• Rolleiflex Magic
• Rolleiflex Magic II
• Rolleiflex 2.8A
• Olympusflex 2.8 TLR etc
• and Planar and Xenotar Lenses Bay II Size.

Rolleipol

Rolleipol can be used for both color and B&W films.

Purpose: Elimination or subduing al disturbing reflections (glare) from shiny, non-metallic objects or surfaces. Under certain conditions, filtering of the blue sky. Especially useful for regulation of the colors (colored reflections) and control of sky tone in color pictures.

Explanation: If the direction of movement of a light beam is imagined to be the axle of a wheel, then the spokes of the wheel correspond to the various plans of oscillation of the light waves (i.e., we are looking at the light beam in cross section). Polarization will reduce the many planes of osculation to merely one.

Polarization takes place when light waves, striking at a certain angle, are reflected by shiny bodies (with the exception of metals). This polarized segment of light can be retained in full or in part by placing the Rolleipol filter across the plane at oscillation: the reflections disappear. (The filter itself has a polarizing effect an the light which passes through it.) Further, since there is also polarized light in the blue sky, this can be eliminated: the use at the Rolleipol filter results in subdued (darkened) sky portions.

Not all reflected light is polarized. If reflections are to be eliminated, 1, the filter must be turned (an its optical axis) in the direction of the vibrations as required, and 2. the camera position must be changed to gain the best effect. This is attained when the beam of light striking the reflecting body and the line of camera view farm an angle at 60–74′, (varies according to material at the subject).

Application: 1. For eliminating or subduing disturbing reflections when photographing reflecting objects (polish, porcelain, painted and lacquered finishes, etc., — reproduction of textures and material), when photographing glass surfaces and the surface of water (the reflecting surfaces became transparent), 2. for filtering sky when photographing landscapes: the blue sky is darkened by absorption of the polarized light it captains. The effect may be observed in advance by looking through the filter. Light value correction about –1.5 = increase at exposure about 3 X.

For Use: Fasten the Rolleipol filter on finder lens (red dot at the top) and rotate the front ring of the Rolleipol until the desired effect is obtained on ground glass. Note the white number marking and transfer to the taking lens