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Intro
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01.Tour & Design
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02.Blacks & Whites
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03.Color Accuracy
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04.Motion
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05.Viewing Effects
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06.Calibration
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07.Connectivity & Media
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08.Power, Noise & Heat
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09.vs Optoma HD20
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10.vs Canon LV-8310
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11.vs Epson 705HD
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12.Conclusion
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13.Specs and Ratings
Epson PowerLite 1775W
Previous: Page 2
Blacks & WhitesNext: Page 4
Motion
Color Accuracy
Decent color performance, as long as you’re in the right mode.
Color Temperature (9.09)
The Epson PowerLite 1775W produced a reasonably consistent color temperature. As the signal intensity gets darker, you’ll notice the whites start to take on a bluish tint. The darker the signal, the bluer it gets.
| Color Temperature |
|---|
 |
RGB Curves (7.88)
We test each color channel (red, green, and blue) separately to measure their response curves. The first thing we noticed is how different the luminance of each channel is. As you can see in the chart below, the dark green are significantly brighter than the blues and reds. The dark reds hardly register they’re so dark. Once they get to the mid-point in the signal range, the channels start to converge.
Practically speaking, this means that you’re going to see a lot more detail in the greens than in the reds, but a casual audience may not even notice.
| RGB Curves |
|---|
 |
| Red Response Comparisons | |
|---|---|
| Ideal Response |
|
| Epson 1775W |  |
| Optoma HD20 |  |
| Canon LV-8310 |  |
| Epson Home Cinema 705HD |  |
| Green Response Comparisons | |
|---|---|
| Ideal Response |
|
| Epson 1775W |  |
| Optoma HD20 |  |
| Canon LV-8310 |  |
| Epson Home Cinema 705HD |  |
| Blue Response Comparisons | |
|---|---|
| Ideal Response |
|
| Epson 1775W |  |
| Optoma HD20 |  |
| Canon LV-8310 |  |
| Epson Home Cinema 705HD |  |
Color Gamut (3.71)
The Epson PowerLite 1775W did not match up well at all to the rec. 709 color standard, which is the standard for HDTV colors. The green point is heavy oversaturated. The red point is unsaturated. Only the blue point is close to the ideal mark.
| Color Gamut |
|---|
 |
Below are the hard details of the color gamut and how they match up to rec. 709.
| u' (rec.709/measured) | v' (rec.709/measured) | Error | |
|---|---|---|---|
| Red | 0.4139 | 0.5226 | 0.0368 |
| Green | 0.1476 | 0.568 | 0.0233 |
| Blue | 0.1731 | 0.1484 | 0.0098 |
| D65 (white point) | 0.1961 | 0.4694 | 0.0020 |
| Read Reviews of Comparison Products | ||
|---|---|---|
 Optoma HD20 |
 Canon LV-8310 |
 Epson PowerLite Home Cinema 705HD |
Shop for the Epson 1775W
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