Specifications

C2-1000 SERIES OPERATION MANUAL

E = 2 * H * (1 – Z/200) [pixels]

For example, with zoom (Z) at 190%, output resolution of 1024x768 (H=1024), we

can calculate E as:

E = 2 * 1024 * (1 – 190/200) = 102.4 [pixels]

There is also a formula for calculating the zoom value (Z) from the edge blend size

(E) and horizontal pixel width of the output (H):

Z = (1 – E / (2 * H)) * 200

For example, with E at 150 pixels, an output resolution of 1920 x 1080i (H=1920), we

can calculate Z as:

Z = (1 – 150 / (2 * 1920)) * 200 = 192 [%]

For the recommended zoom value of 190%, the following edge blend horizontal

sizes should be used for various output resolutions:

Zoom % Output

resolution

Edge

blend

H size

190 640 x 480 64

190 800 x 600 80

190 1024 x 768 102

190 1280 x 720 128

190 1280 x 1024 128

190 1600 x 1200 160

190 1920 x 1080i 192

To set these edge-blend widths, perform the following:

1. Go into the ‘Adjust keyers’ menu.

2. For Output 1 (1A), change ‘E.blnd size’ (the first number) to the H size

recommended above.

3. For Output 2 (2B), change ‘E.blnd size’ (the first number) to the H size

recommended above.

It is very important for Outputs 1 and 2 to use the same blend width, or you will not

be able to accurately blend your images. However, should your projectors be

mismatched, changing the blend width on one or both of them can sometimes help –

but this should be done as a last resort.

11.8 Edge-blending guide lines

These lines, as mentioned earlier, are used to aid the alignment of your projectors.

They show the area to overlap – the red lines indicate the inside edge of the output

resolution, whilst the green lines indicate the edge of blending. (G marks the green

lines, R marks the red, Y marks the yellow, for those reading in black and white.)