Located in Arizona, the Multiple Mirror Telescope (MMT) features a 6.5-meter mirror designed for both spectroscopy and high-resolution imaging.

In manufacturing and research, "6.5" often refers to the or zoom ratio of an objective lens, paired with a digital camera system.

These microscopes are often sold as "1080P Video Microscopes" because they come with a dedicated HDMI camera. This allows technicians to view tiny circuit board components or biological samples on a Full HD monitor without leaning over an eyepiece.

The phrase is most likely a reference to a specialized optical or imaging system where "6.5 Metre" refers to the physical size (aperture) of a lens or mirror, and "1080P" refers to the digital output resolution. While it sounds like a single product, it often appears in two distinct, high-tech contexts: giant survey telescopes and high-precision industrial microscopes . 1. The Sky-High Perspective: Giant Survey Telescopes