Which Aspect Ratio is better ?

A: When we talk about 4:3 and 16:9 formats, we're talking about the rectangular shape of the video image, or what is called its aspect ratio. A standard TV has an aspect ratio of 4:3. That means the picture is four units wide for every three units of height. The HDTV standard is 16:9, which is 16 units of width for every 9 units of height. So HDTV's 16:9 is horizontally wider than regular TV, which by comparison looks almost square.

Aspect Ratios: Benefits and Downsides

4:3 Theater

Advantages: If you want to view material such as classic films, or DVD-based television series like Friends or Northern Exposure, or an IMAX special like Everest in very large dramatic format, the 4:3 set-up lets you do this in a way a 16:9 system does not.

Disadvantages: Most, if not all, high quality home theater projectors being marketed these days are in native 16:9. And since most 4:3 projectors are in resolutions such as 800x600, 1024x768, and 1400x1050, it means that all video content will need to be scaled to fit the projector's native resolution.

16:9 Theater

Advantages: For HDTV, widescreen DVD, and Blu-Ray, 16:9 is the logical choice. All HDTV broadcast material is in 16:9, and it will be displayed in its full glory, without black bars, on a native 16:9 projector. And there is a lot of 16:9 programming available. There are many 16:9 projectors to choose from, and many of them are designed specifically for high quality home theater.

Disadvantages: While 16:9 programming looks larger than life, 4:3 material displayed on a 16:9 projector can appear downright tiny. Generally it is centered on a 16:9 screen with black columns on each side. Alternatively, if you watch a lot of movies that are wider than 16:9, you will have black bars above and below the image.

What is Resolution?

A: A projector's resolution (or more precisely, its "native resolution") is simply the number of pixels that it has available to create an image. The higher the resolution of a projector, the more pixels it has.

Generally speaking, the higher the resolution, the more the projector will cost. The advantages of higher resolutions are that (a) they can display more detail in the picture (assuming the video signal has the detail in it), and (b) they reduce or eliminate the visibility of the pixel structure. Both of these are highly desirable in good home theater. The price difference is not as extreme as it once was, but there is still a gap to be aware of.

What Is Brightness?

A: How much illumination your eyes perceive on the screen depends on two factors: (1) the light output of the projector, and (2) the reflective properties of the screen.

Why do you Get Misled by ANSI Lumen Specs?

A: When it comes to home theater projectors, brighter is definitely not better. What you want is a projector that produces enough light to fill your screen with good contrast, but not so bright that it creates eye fatigue when viewed for any length of time. It is safe to ignore the published ANSI lumen rating-it is irrelevant for a variety of reasons.

Whatever you do, don't make any assumptions about a projector's brightness based on its ANSI lumen rating. Some models have video optimization incorporated into their ratings and others do not. That means there are projectors out there which are officially rated at 700 ANSI lumens that are actually brighter than models rated at 1500 ANSI lumens. Spec sheets, as far as lumen ratings are concerned, are meaningless for home theater.

Why is Contrast so important?

A: Contrast is the difference in brightness between the brightest and darkest parts in an image. The greater the difference, the higher the contrast.

With business projectors, lumen output is of primary importance, and contrast is a secondary concern. Home theater projectors are the exact opposite. Contrast is arguably the single most important measurable quality in a home theater projector. A high-contrast projector produces a picture with a deep black level and clearly defined shadow detail. Contrast, in essence, gives "depth" to video images. A projector with excellent contrast can make a two-dimensional image appear almost three-dimensional.

Why dark room is needed for better results?

A: You've noticed that commercial movie theaters are dark, including dark-colored, non-reflective ceilings and walls. That is because any front projection system looks its best when there is no light in the room; this includes stray light from the screen that reflects off the walls or ceiling. Once you introduce light into the room, that light will make blacks look more like dark gray. This reduces the contrast of the image, making it appear flat or washed out. This will happen no matter what the contrast capability of your projector is.

[Q Shot2] How much is the power consumption?

A: It is energy-saving, the maximum power is 80W.

[Q Shot2] What kind of lamp does it use?

A: The Luminus LED lamp with long life span, more than 20,000 hours.

What's the maximum capacity the USB port supports?

A: Up to 2 TB.

[Q Shot1] Q Shot1 brightness is 1000 Lumens as mentioned. May I ask, whether it is in ANSI Lumens, LUX Lumens, NITS Lumens or LED Lumens? I heard there are 4 different number ratings. So, which rating does this projector uses?

A: 600 ANSI Lumens

[Q Shot3] Does the Q Shot3 support smart phone, Android or iPhone?

A: Yes, it's built in Android 4.2 OS and wifi chipset, DLNA/Airplay/Miracast supported.

Are there any speakers built in? What about the output?

A: Yes, there is a stereo speaker with 4Ω/2W output.

[Q Shot2] Are the 3D glasses in the market works with Q Shot2?

A: Yes, Q Shot2 uses active shutter 3D glasses.

[Q Shot1] What is the color temperature for this Q Shot1 model? Is it 6500K, 7500K or 9300K output? Is it adjustable through the interface menu?

A: 7500K-8500K, and you can adjust it by changing the GAIN value of R or B.

[Q Shot1] Is the model bright enough to watch a 100" 3D movie projection? Well, I want to watch 3D films in a dark room environment.

A: 100" 3D movie is OK, and it even can project the movies up to 114"size at a distance of 3M


Advantages of LED Projectors

Low Cost of Ownership
• No Lamps to Purchase
o 60,000 to 100,000 Hour Illumination System Depending on Projector Model
o Saves $$$ Spent on Lamps
o Saves Time Spent Tracking Lamp Hours until Replacement
• No Lamps to Replace
o Reduces Downtime Spent Replacing Lamps
o Reduces Downtime Spent Calibrating Brightness
• Replacement LED Module (if ever needed) o Low cost, costs less than two lamps o Field Replaceable (?)
Better Color
• Wider Color Gamut than Lamp Based Projectors
• Up to 140% of the NTSC Color Gamut
• Better Inter-‐Channel Color Matching
• No Color Drift
• Deeper, More Saturated Colors
• Deep Saturation Makes Image Appear Approximately 25% Brighter than its Brightness Spec
Brightness Stability
• Less than 3% brightness drop over 1500 hours versus 50% brightness drop for a 1500 hour lamp
• Brightness drift is negligible between channels
System Design and Installation
• No Orientation Limitations
• Mount in any direction
Motion Compatibility
• No Lamps to Vibrate
• More Compatible With Motion Based Systems
• Only Moving Parts are Cooling Fans and DMD Mirrors
• MTBF of DMD is 100,000 hours
• MTBF of Fans is 100,000 hours
• Robust Power Supply (MTBF?)
• No Color Wheels
• Sealed System to repel dust and dirt
• No IR or UV Filters to Replace
• Low Heat Generation and Output
Power and Environment
• Low Power Consumption
• Low Heat Output has lower effect on HVAC Needs
• Environmentally Friendly, no Mercury or Xenon Lamps


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