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Page 2.9
Notes
Note that for the long throw
lens, there is some overlap
between the range available
using the converter lenses and
that using no converter lens.
Lens charts for the long throw zoom lens
example
You can display a 4:3 image with a screen width of 3m at a distance of 6m, but
for a screen width of 2m, you will need to use the 1.25x converter lens.
Screen width
1 2 3 4 5 6 7 8 9 10 11 12 metres
3 7 10 13 16 20 23 26 30 33 36 39 feet
23 7
20 6
16 5
13 4
10 3
7 2
3 1
using the 1.25x
converter lens
using the 0.8x
converter lens
without a
converter lens
Throw distance
Screen width
1 2 3 4 5 6 7 8 9 10 11 12 metres
3 7 10 13 16 20 23 26 30 33 36 39 feet
23 7
20 6
16 5
13 4
10 3
7 2
3 1
using the 1.25x
converter lens
using the 0.8x
converter lens
without a
converter lens
feet
metres
16:9 images
4:3 images