If you are planning to buy a projector, then you must be seeing so many options such as Gaming, Office, High Performance, Value, Premium, Education, Next Gen etc. Basically there are only 3 technologies widely used for the making of consumer projectors. They are LED, LCD and DLP. Just imagine our TV technologies LED, LCD, Plasma and CRT etc. Then the question is can't we use the LED TV for education purpose? Or can't we use the LCD TV for office purpose? We can use any technology or any type of projectors for any purpose. Same logic applies on projector as well. There are few specially designed for certain purpose. Say for example, a gaming TV. What does it mean? A gaming TV is a normal TV with the a little higher picture refresh rate than other consumer TVs. This doesn't mean that a gaming TV cannot be used for any other purposes or any other type of TV cannot be used for gaming purpose. The same applies for the projectors as well. Just know little more about LED, LCD and DLP. Then jump into your projector selection leaving other marketing techniques away.
Also, although the chip is sealed, other components are not, so dust can settle on the color wheel and affect image quality. Another disadvantage may be the poor viewing range. Most DLP projectors are not readily compatible with zoom lenses or lens shift functions, which means they are best suited to smaller environments. This would likely not be the best choice for a large home theater projector.
DLP, LCD, and LED Technology
The technology used in projectors can generally be broken down into two types: transmissive or reflective. Because LCD projectors pass light through the LCD panels rather than bouncing it away, they are considered a transmissive medium. A DLP projector uses mirrors to direct the light in an image, so it is considered to be reflective.The third type of projector discussed, an LED projector, is named for the light source, not the type of projection technology.How DLP Projectors Work
DLP projectors first appeared on the market in the 1980s, and they rely primarily on a DLP chip (called a digital micromirror device, or DMD), comprised of up to 2 million tiny mirrors, no wider than one-fifth the width of a human hair. Each mirror in this chip is capable of independent adjustment, moving toward or away from the light source to create a dark or light pixel. At this point, however, the image is in grayscale. Color is fed to the DMD by a beam of light that passes through a spinning color wheel before it reaches the chip. Each segment of the color wheel delivers one color. Basic color wheels support red, blue, and green, whereas more advanced color wheels support cyan, magenta, and yellow. While these chips can create up to 16.7 million colors, a DLP projector with a three-chip architecture can deliver up to 35 trillion colors. After color reaches the DMD, the image is fed through the lens and onto the projection screen.Advantages and Disadvantages to DLP Projectors
DLP projectors require less maintenance than LCD projectors because they have a filter-free and sealed chip design, which means dust cannot settle on the chip and cause an image spot. They are effectively immune to color decay. Furthermore, they are not subject to the misalignments that can occur in LCD projectors with a three-panel design, which require each panel to be in perfect position to combine the image at the proper angle. However, DLP projectors with slower color wheels may give off a rainbow effect, which is when bright flashes of color appear on the screen, like rainbows.Also, although the chip is sealed, other components are not, so dust can settle on the color wheel and affect image quality. Another disadvantage may be the poor viewing range. Most DLP projectors are not readily compatible with zoom lenses or lens shift functions, which means they are best suited to smaller environments. This would likely not be the best choice for a large home theater projector.
How LCD Projectors Work
LCD projectors have also been around since the 1980s, and use the same liquid crystal displays that create the images in watches and other electronic devices. Specifically, most LCD projectors use 3 LCD technology, a patented system that combines three liquid crystal displays. An image is created in a multistep process, which begins with the light source providing a beam of white light. The white light is passed to three mirrors, called dichroic mirrors, that are specially shaped to reflect only a certain wavelength o flight. In this case, the mirrors reflect red, blue, and green wavelengths. Each beam of colored light is then fed to an LCD panel, which receives an electrical signal that tells it how to arrange the pixels in the display to create the image. All three LCD panels create the same image, but they have different hues because of the colored light passing through the panel. The images then combine in a prism, creating a single image with up to 16.7 million colors that is passed through the lens and projected onto the screen.Advantages and Disadvantages to LCD Projectors
The technology in LCD projectors is more established and reliable than film projectors. However, they may still require maintenance, as pixels can burn out and dust particles can interfere with image quality. On the other hand, LCD projectors have no moving parts, as DLP projectors do, and they are generally less expensive than their DLP counterparts. They also support setups in larger rooms where a greater projection distance is needed, because they are compatible with zoom lenses and lens shifts. This makes them great for larger, at-home cinema projects, as long as there is a smooth projection surface available.How LED Projectors Work
LED projectors are defined not by the display technology used, but the lighting. In fact, some DLP projectors with "solid-state illumination" technology are actually LED projectors. Another type of projector, the pico projector, commonly uses LED technology as well. Pico projectors are essentially handheld devices that use LCoS, or liquid crystal on silicon, which is similar to an LCD panel but reflective rather than transmissive. In these cases, the projector replaces the traditional lamp with longer-lasting and more efficient LEDs, colored in red, green, and blue. In DLP projectors, this also replaces the color wheel technology, instead letting the red, blue, and green LEDs shine directly on the DMD chip.The Advantages and Disadvantages to LED Projectors
The LEDs in an LED projector have a much longer life than traditional projector lamps, rated at 10,000 or even 20,000 hours as opposed to 1,000 hours to 5,000 hours. As such, the LED light source is meant to last the entire life of the projector without ever needing to be replaced. This is a big advantage in multimedia setups because replacing traditional lamps can be a major expense in projector maintenance. There is no warm-up or cool-down time needed because the LEDs are much more energy-efficient than traditional light sources, and they are also much quieter. This reduces maintenance and operating costs.
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for SD cards and Micro SD cards and 2 in 1. $6 is a reasonable price for such a reader. Now imagine a 2 in 1 (SD and Micro SD USB card reader) is equipped with an 
as well. That's something a lot for under $6 price tag. This card reader/writer is the solution for all the memory needs. You can transfer your favorite pics, songs, and videos from any device to your computer and vice versa. Also the same can be copied to your mobile as well using it OTG port. A good deal isn't it?
can be a best friend in emergencies. All come under the price of $3. Nice right?
Camera. The 'D' is adding a 'Digital' to it. So 
is Digital Single Lens Reflex Camera. Why we call it DSLR? Because combines the optics and the mechanisms of a single-lens reflex camera with a digital imaging sensor, as opposed to photographic film. A DSLR camera consists of, 
, 
, 
, 
, 
, 
, 
, 
. All these components make this camera bit heavier and bulky compared to cameras that are using other technologies. If you really don't care about the size of the camera, then DSLR is a good choice. It produces outstanding image quality, access to a wide range of lens and accessories.
, 
, 
and 
. Much lesser right? It comes with many advantages and some disadvantages as well. The main advantage is that the whole body of the camera becomes compact and lighter. It's a good choice if you are planning the camera for video shoots. Same time it has few cons as well. You have access to a limited range of lens and accessories. If you were using a DSLR, you need to buy the lens set again for the Mirrorless. The lens mount is not the same for DSLR and Mirrorless. You won't find optical viewfinder on any Mirrorless cameras.
are the type of still cameras that has an autofocus and a built-in flash component. It is widely used by non-professionals because it is easy to use and comes in a user-friendly, compact size. And the comfort of usage comes with some disadvantages as well, such as the non-interchangeable lens, low image quality due to the smaller image sensor and these cameras are not upgradeable.
(camera recorder) is used for recording video and audio. There might be a question that I can record video on with my 
, 
or even with 
, then why camcorder? Its right, these days you can record video with any of these cameras. But the main purpose of any other camera is not to record video. They are designed to take still images and video is just an extra feature. If your purpose is to record extended hours of continues video recording, then definitely go for a camcorder rather than doing the same with other cameras which can damage the sensor of the camera faster.
recordings? Means do you want to shoot your biking action by mounting the camera on your helmet? Or want to film yourself underwater with a selfie stick? Then go for Sports & Action Cameras. They are compact in size and most of them are waterproof there days. It comes with lots of accessories to mount it where ever you want.
