Brightness. The ML300 fully lives up to its 300 lumen rating, at a measured 298 lumens in its brightest mode. Other LED brightness mode presets ranged from 173 to 259 lumens. In my tests, this proved bright enough for comfortable viewing of a 77" diagonal image in theater dark lighting, with the same size still useable for short sessions, if a little washed out, even with moderate ambient light.
Good brightness uniformity. The projector also did a good job maintaining uniform brightness across the screen in my tests, with a measured 80% brightness uniformity. The difference was barely enough to see on a solid white screen and impossible to see on a screen broken up by text or graphics.
Good Connectivity. The ML300's connection options count as a strong point. The array of connectors on the back and one side include a standard VGA port for a computer, a mini HDMI port, a microSD card slot, and a USB A port for a USB memory key or for Optoma's $29 optional Wi-Fi dongle. In addition, there's a micro USB connector for (a) direct USB display from a computer and (b) transferring files to and managing files in the 2GB internal memory. Finally there are two miniplug jacks;one is for stereo audio and composite video, and one for stereo audio output.
Optoma says that the projector can read 14 file formats directly from memory, including the most common image, video, and audio formats. In my tests I confirmed that it can read JPG, PDF, XLS, TXT, and Word DOC files.
Also worth mention is that Optoma's optional Wi-Fi dongle works with PCs, Macs, and both iOS and Android devices. I had some setup problems with both a PC and an Android phone in my tests, but only because critical information wasn't included with the projector. The setup process itself is straightforward, and Optoma says that it's working on including more complete instructions.
|Review Contents:||Strong Points||Testing||Limitations and Conclusion|