The manufacturer suggests that the GT760 is ideal for presenting an image that may be sized at anything from 69 to 300 inches. That sounds about right. I stretched it far beyond the capacity of my 84” portable screen but would still be confident about projecting on a bigger surface for large group get-togethers. This would be especially true during the summertime and holiday events.
The manufacturer specs indicate that the GT760 has a brightness of 3400 lumens. Although any industry expert will tell you that there is a noted discrepancy between the actual and stated brightness, the GT760 holds its own in this category as small business projectors like it typically do.
Beware of the Aura
Finally, I put out the lights and put the projector on the Studiotek 130. Color was clear and so was the contrast. However, I did encounter an annoying highlight or aura that appeared especially outlining flesh tones as illustrated here (note the glowing outline). The good news is that I only noticed it when running still frames. I really had to look hard for it during standard run time.
Brightness Across Modes
After going over the test dinks and Casino Royale, I switched to white screen and ran my modes. These include Movie, SRGB, Blackboard, Bright, and Presentation. Since the native format of the GT760 is 16:10, I put up an 80” by 50” image and evaluated it on every mode. Keep in mind, however, that I am working with a dome lens at an angle when recording measurements so there is a plus or minus factor ranging from 5 to 10% of my readings.
In movie mode, I recorded 1708 lumens. SRGB was 1059. Blackboard gave me brightness readings of 2904 lumens while Bright gave me readings in the neighborhood of 3570 lumens to which I hold a reasonable degree of skepticism about.
Remember, the measurements were conducted at an angle against a bubble-lens short throw projector. Even though it’s possible to get a ballpark estimate, it is not an exact science. Lastly, I achieved a reading of 2916 lumens in presentation mode.