Navitar 10k User Guide

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The SUPERNOVA 10K is equipped with a lens changing system. This enables the
user to change to a different focal length lens within a few seconds. Navitar recom-
mends the following projection lenses for the SUPERNOVA 10K:

Each of the lenses above is a high quality Navitar projection lens offering excellent
contrast and superior brightness, especially with the HTI-lamp. If the focal length
you require is not listed here, please contact Navitar for further assistance.

In general, you will use the proportion between the distance from the projector to
the screen and the width of the projected image. This means when using a lens
size 3.4:1 the projector has to be 3.4 feet away to get a 1 foot wide projected
image.

Example:
Let us assume you would like to have a projected image of 26 feet in width and the
distance from your projector to the wall is 105 feet. Then you proceed as follows:

Distance / Width of Projected Image
105 feet / 26 feet  = 4 feet

Therefore, you need a lens with a focal length of 4.0:1.

If you have any questions concerning the correct lens for your application, please
do not hesitate to call Navitar for assistance.

GNZ-2435

55-100

2.25-4

f/3.5

GNZ-2528-M

70-125

2.75-5

f/2.8

GNZ-4835

100-200

4-8

f/3.5

GNZ-150230-M

150-230

6-9

f/3.5

GNZ-200300-M

200-300

8-12

f/3.5