The Holy Grail of 3D has long been 3D without glassestechnically known as autostereoscopic 3D. But past CES demos of this technology have been notable duds.
The only way to do 3D without glasses is to process the image so that the images to each eye are isolated. But this has a side effect. You can see the 3D when viewed straight on. Move off center by a few degrees and the 3D disappears, taking some image quality with it. Move a bit further off-axis and the 3D returns. And so onand off. The result is you get 3D only in a limited range of viewing zones, and poor image quality in others.
Digital Projection International (DPI) isn’t mentioned often in our pages except at shows, perhaps because its product lineup is bewilderingly varied, or perhaps because most of its offerings are priced in the “If you have to ask” category.
Take the Insight Laser 8K 3-chip DLP shown here...
Price: $6,995 (optional Schneider Optics lens: $7,995) At A Glance: Big, bright, punchy image • Black level and shadow detail compete with the best • Excessively wide color gamut
Broaden Your Horizons
If you’ve investigated the subject of constant-height projection, you know that it can be a complicated, slightly intimidating business. We covered the ground rather thoroughly in “Beating the Black Bars” (HT, October 2008). Constant-height display generally involves placing a so-called anamorphic lens in front of a projector’s native lens when viewing true widescreen films—that is, films with an aspect ratio of around 2.35:1 (often called scope films). Such a setup also employs a 2.35:1 screen. For material with an aspect ratio of 1.85:1 or less, the lens is normally moved out of the way and the image is projected onto the 2.35:1 screen with black bars on each side. This is sometimes called windowboxing.
In a spare few minutes while waiting for yet another video demo I wandered into the surprisingly extensive space at the Convention Center reserved for drones of all sizes and shapes, each of them demonstrated inside barred cages that were actually, thin, heavy strings that looked like they could be easily breached by a rabid, runaway drone...
When I wrote about the new film version of Dune some months back my reaction was positive. I saw it in a movie theatermy first visit to one in two years. There was plenty of social distancing during my visit; with a dozen or so other attendees at a midweek, midafternoon showing I could have swung a cat on a 10 foot rope without hitting anyone (with apologies to cat people). I enjoyed the film, but as I noted in that October 2021 blog, I was disappointed by the quality of much of the cinematography. This was surprising, since it was the Dolby Cinema in my local AMC-plex. Dolby Cinema is by far my favorite way to see a movie in a commercial theater. It wasn't the sort of disappointment the average viewer would feel, and even I could set my concerns aside once I got into the film. But I know Dolby Cinema can do better and the film deserved it.
Less than three weeks after the Germans invaded France in May 1940, the British Expeditionary Force found themselves backed up against the English Channel. The evacuation that followed sought to rescue over 300,000 British and French troops using a combination of British warships and hundreds of “little boats.”