NEC Is15-2k Digital Cinema Projector User Manual

page 2.5
iS15-2K Cinema Projector: User Manual 2. Installation
Using the anamor phic lens
The projector can be configured by your installer to correctly display images that
have been compressed horizontally (or stretched vertically) by an anamorphic lens
when filmed.
This can be achieved with or without the use of the anamorphic lens.
As can be seen in the examples in Fitting the image to the DMD, earlier in this
section:
When using the anamorphic lens, all images (including 2.35:1) can be displayed...

page 2.6
2. InstallationiS15-2K Cinema Projector: User Manual
Notes
For more information about how
to fit and adjust the projection
lens, see Fitting the projection
lens, later in this section.
For more information about how
to determine the image size in
pixels, see Fitting the image to
the DMD, earlier in this section.
For more information about
Throw ratio factor (TRF), see
Useful lens calculations, later
in this section.
This projector does not perform
any image processing on
signals connected to the...

page 2.7
iS15-2K Cinema Projector: User Manual 2. Installation
Notes
If the mix of images to be
displayed includes images of
varying aspect ratio, then you
should base your choice of lens
on the widest image that is to
be projected.
The lenses available and their
part numbers are listed below:
1.45 - 1.8: 1 zoom lens102-933
1.8 - 2.4: 1 zoom lens102-934
(note: these two lenses overlap)
2.2 - 3.0: 1 zoom lens102-935
3.0 - 4.3: 1 zoom lens102-936
Lens charts
Native resolution 2048x1080, no anamorphic lens...

page 2.8
2. InstallationiS15-2K Cinema Projector: User Manual
Notes
If the mix of images to be
displayed includes images of
varying aspect ratio, then you
should base your choice of lens
on the widest image that is to
be projected.
The lenses available and their
part numbers are listed below:
1.45 - 1.8: 1 zoom lens102-933
1.8 - 2.4: 1 zoom lens102-934
(note: these two lenses overlap)
2.2 - 3.0: 1 zoom lens102-935
3.0 - 4.3: 1 zoom lens102-936
2.35:1 full width image with anamorphic lens
Use the chart...

page 2.9
iS15-2K Cinema Projector: User Manual 2. Installation
Notes
If the mix of images to be
displayed includes images of
varying aspect ratio, then you
should base your choice of lens
on the widest image that is to
be projected.
The lenses available and their
part numbers are listed below:
1.45 - 1.8: 1 zoom lens102-933
1.8 - 2.4: 1 zoom lens102-934
(note: these two lenses overlap)
2.2 - 3.0: 1 zoom lens102-935
3.0 - 4.3: 1 zoom lens102-936
2.35:1 full width image, no anamorphic lens
Use the chart...

page 2.10
2. InstallationiS15-2K Cinema Projector: User Manual
Notes
For an example of how to use
the lens charts, see the first
chart.
The lenses available and their
part numbers are listed below:
1.45 - 1.8: 1 zoom lens102-933
1.8 - 2.4: 1 zoom lens102-934
(note: these two lenses overlap)
2.2 - 3.0: 1 zoom lens102-935
3.0 - 4.3: 1 zoom lens102-936
1.85:1 full height image, no anamorphic lens
Use the chart below to choose which lens best suits your application.
if you need to be more precise, then use...

page 2.11
iS15-2K Cinema Projector: User Manual 2. Installation
Notes
For an example of how to use
the lens charts, see the first
chart.
The lenses available and their
part numbers are listed below:
1.45 - 1.8: 1 zoom lens102-933
1.8 - 2.4: 1 zoom lens102-934
(note: these two lenses overlap)
2.2 - 3.0: 1 zoom lens102-935
3.0 - 4.3: 1 zoom lens102-936
16:9 full height image, no anamorphic lens
Use the chart below to choose which lens best suits your application.
if you need to be more precise, then use...

page 2.12
2. InstallationiS15-2K Cinema Projector: User Manual
1.66:1 full height image, no anamorphic lens
Use the chart below to choose which lens best suits your application.
if you need to be more precise, then use the calculations on page 5:
Notes
For an example of how to use
the lens charts, see the first
chart.
The lenses available and their
part numbers are listed below:
1.45 - 1.8: 1 zoom lens102-933
1.8 - 2.4: 1 zoom lens102-934
(note: these two lenses overlap)
2.2 - 3.0: 1 zoom lens102-935
3.0...

page 2.13
iS15-2K Cinema Projector: User Manual 2. Installation
Notes
For an example of how to use
the lens charts, see the first
chart.
The lenses available and their
part numbers are listed below:
1.45 - 1.8: 1 zoom lens102-933
1.8 - 2.4: 1 zoom lens102-934
(note: these two lenses overlap)
2.2 - 3.0: 1 zoom lens102-935
3.0 - 4.3: 1 zoom lens102-936
Lens charts, continued
4:3 full height image, no anamorphic lens
Use the chart below to choose which lens best suits your application.
if you need to be...

page 2.14
2. InstallationiS15-2K Cinema Projector: User Manual
Notes
For an example of how to use
the lens charts, see the first
chart.
The lenses available and their
part numbers are listed below:
1.45 - 1.8: 1 zoom lens102-933
1.8 - 2.4: 1 zoom lens102-934
(note: these two lenses overlap)
2.2 - 3.0: 1 zoom lens102-935
3.0 - 4.3: 1 zoom lens102-936
Lens charts, continued
5:4 full height image, no anamorphic lens
Use the chart below to choose which lens best suits your application.
if you need to be more...