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The extensive variety of cinema projection lenses is
complemented with additional accessories which support many practical
projection applications optimally: Anamorphic lens Keystone Corrector
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ES-Cinelux Anamorphic 2xThis anamorphic lens is designed
as an integral component of the |
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Cinelux M65 (WA/Tele Vario Conversion Lens)This multi-function converter with
variably adjustable magnification can be used either as a wide-angle or
a tele converter (you reverse it to change function). As a tele
converter 1.4x to 1.65x it serves to ob-tain longer focal length
than the maximum 180 mm of the standard lenses for long projection
distances, e.g. with a 140 mm lens a steplessly selectable focal length
As a wide-angle converter 0.63x to 0.70x it
creates a wide-angle combination. For example, with a 65 mm base lens a
wide-angle lens combination is created with steplessly selectable focal
length between |
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ExtensionThis lens attachment transposes the exit
pupil of the lens toward the front thanks to its additional glass
distance without having even the slightest negative effect on the
imaging. It is used with lenses which have a short focal length and
which are needed with a very large screen with only a short projection
dis-tance. The Extension avoids partial vignetting of the wide image
which can e.g. be caused by parts of the projector which extend into
the beam path, parts of other lenses in the same lens revolver or by
too nar-row a window. There are Note: No adapter is required to connect the Extension.
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Keystone CorrectorThe Keystone Corrector allows
trapezoidal distortion to be eliminated in projectors with a 4"
lens mount; this distortion occurs when the projection does not take
place at right angles to the screen, e.g. with oblique down-ward
projection. It is used for cinema lenses with a tube diameter
of 70.65 mm in place of the 4" adapter. It cannot be used in
projectors with lens revolvers. If the projector is not central with
respect to the screen, but has a lateral offset, (additional)
distortion occurs with a larger image height on the screen side further
away from the projector; there is also a visible loss of focus on both
sides if the lens has been focused to the center of the screen. This
error can also be eliminated using the Keystone Corrector; it only has
to be installed rotated such that the lens does not move down in a
perpendicular manner when shifted, but obliquely in the direction
toward the further distant side of the screen. The equalization
performed with the Keystone Corrector does not only ensure that
plunging lines and the horizontal axes diverging toward the further
distant screen side again extend precisely perpendicular or
horizontally, but also provides a very uniform focus over the whole
screen format.
The Schneider software
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Adapters and Extension TubesA variety of adapters are available for
the combination of anamorphic attachments or of the WA/Tele
Converter Cinelux M65 with specific
Note: In order to avoid vignetting, we recommend the combination with the base lens without its front ring. |
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