Red Dot Reflex
Red Dot Reflex
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 NcSTAR Style 33mm 4 Reticle Red Green Holographic Sight Red Laser Aim  US $47.41
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 HOT 1X25 RED GREEN DOT REFLEX SIGHT WEAVER 3 8 DOVETAIL BASE BLACK DAB US $23.75
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 NcSTAR Style 33mm Red Green 4 Reticle Holographic Sight for Airsoft Hunting US $30.02
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 Spyder Sonix Paintball Gun with Mask Goggles paintballs and hopper US $75.00
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 tm 15 sight 1x25 Tactical Compact Red Green Dot Sight tippmann phenom sight ne US $23.00
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 ADCO SQUARE SHOOTER ELECTRONIC RED DOT SIGHT REFLEX MOUNT PAINTBALL SCOPE US $49.99
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 NcStar Style 33mm 4 Reticle Red Green Holographic Sight Red Laser Aim US $45.82
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 Elcan Specter DR Style 4x Red Illuminated Rifle Scope with Reflex Dot Sight US $181.76
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 NcStar Tactical Reflex Red Dot with On Off Switch DDAB 1890 US $49.90
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 Tippmann Red Dot Reflex Sight Weaver Base Paint Ball Paintball Accurate Game NEW US $24.95
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 NCSTAR 1X25 RED GREEN DOT REFLEX SIGHT DAB Squeegee US $25.95
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 NcSTAR Red Dot Reflex Sight 4 DiffReticles D4B Tippmann X7 Phenom Project Salvo US $39.99
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 Tippmann US Army Carver One Paintball Gun w Red dot Stock Laser Bipod 18 7211 US $194.00
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 Tippmann US Army Carver One Paintball Gun w Red dot Stock Laser 7207 US $154.00
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 Tippmann US Army Carver One Paintball Gun w Red dot Stock 7209 US $134.00
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 Tippmann US Army Carver One Paintball Gun w Red dot Laser Stock 18 7200 US $189.00
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 Tippmann US Army Carver One Paintball Gun w Red Dot Bipod Stock 18 7202 US $174.00
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 1X25 RED GREEN DOT REFLEX SIGHT WEAVER 3 8 DOVETAIL BASE BLACK US $23.95
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 Tippmann A5 Sniper 20 Red Dot Marksman Paintball Gun US $259.00
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 US Army Project Salvo Paintball Gun Marker w Flash light Red Dot 18 6688 US $222.00
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 Tippmann US Army Project Salvo Paintball Gun Marker w Laser Red Dot 18 6691 US $222.00
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 Tippmann US Army Project Salvo Paintball Gun Flash Light Laser Red Dot 18 6690 US $242.00
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 NEW NCSTAR 4 RETICLE RED GREEN DOT REFLEX SIGHT SILVER US $63.99
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 NcStar Tactical Reflex Red Dot 1X DDAB LED WEAVER STLYE MOUNT 1890 US $49.95
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 Zeiss Z Point Style Reflex Red Dot Sight w Optical Sensor Auto Contrast US $42.66
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 Socom 4x32 Paintball M4 Scope w Red Dot Reflex Sight US $206.95
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 T68 Gen7 SOCOM Paintball Gun Remote Line Version US $629.95
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 NEW T68 Gen7 REFLEX PAINTBALL GUN US $509.95
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 NEW SPYDER MR1 SD5 PAINTBALL GUN PACKAGE US $409.95
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 T68 Gen7 SOCOM Paintball Gun US $629.95
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 T68 Gen7 Punisher Paintball Gun Remote Line Version US $674.95
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 AT Compact Micro Open Reflex Red Dot Holographic Sight Mini Max MOA Free SHIP US $45.99
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The Truth About Pure Black And Other Features Of Your LED Screen
In the past we discussed some basic information about LED technology. So just to summarize in case you missed anything, here's a brief recap:
* LED = a semi-conductor that emits light
* Pixel = the basic luminous dot, which can contain one or more LEDs
* Pitch = the distance between pixels, expressed in millimetres
* Pure white = the perfect balance of red, green, and blue
* Minimum Viewing Distance (MVD) = the closest you can get before image appears pixelated. The type of screen, as well as the type of content displayed, plays a role here.
* LED screen = smaller modules (from 4*4cm to over 1*1m) assembled together
* Colors available = up to 280 trillion (65,000 * 65,000 * 65,000).
* Gamma correction = the exponential correction needed to adapt colors to the logarithmic vision of the human eyes
Now let's take a deeper look into further features that define the quality of an LED screen. We mentioned several times the importance of having a pure white (the perfect balance of red, green, and blue) in order to have the highest image quality. Now lets see the importance of having pure black.
How do you obtain a pure black on an LED screen? Well, you do it by turning off all the LEDs. Pretty easy, huh? Actually, no. The biggest problem in obtaining pure black with an LED display is the fact that you do not use LEDs to get the black. In fact, if all the LEDs are switched off, you can't rely on your advanced electronic control system.
So how do you do that? You ask the mechanical engineer - incredible, but true. Obtaining pure black is a question of mechanical structure of the LED screen. Indeed, pure black entirely depends on how dark the surface can get when the screen is turned off.
Trust me, it's not easy. The main complication is that such a wide surface will always have a reflection factor, meaning that, if you are not careful, you might end up with a huge black mirror when you turn off the screen. That's why the frontal design of the LED walls is so important, because it must be dark without being flat and reflective as a mirror.
Why, exactly, is pure black so important? Because it defines the contrast levels of the LED screen. The contrast level is the difference between the light emitted by the display and the environmental light reflected by the screen's surface. Minor is the light reflected, higher is the contrast and, therefore, the color depth and the naturalness of the images.
To increase the contrast level, professional LED screen manufacturers provide particular anti-reflex flyers that split the light and don't reflect it, increasing the visibility of the screen even in direct sunlight. The contrast level of a LED display is a fundamental factor to take into consideration, especially during huge events broadcast via television.
What should you be aware of when broadcasting an live event on your LED screen? First of all, the LED wall refresh rate. The refresh rate indicates the number of times that the image refreshes every second. For example, a PC monitor has a refresh rate of 72Hz and, therefore, refreshes all the pixels of the screen, from top to bottom, 72 times every second. To provide a comparison, most TV monitors have a refresh rate of 50Hz and only few products of the last generation have a 100Hz refresh rate.
Professional LED screens have a minimum refresh rate of 240Hz, which is almost triple of that of most advanced TV monitors. The refresh rate is fundamental, because it determines the image's quality: if it is too low, the LED screen would display a flickering image when recorded by a professional camera. Some manufacturers offer a refresh rate as high as 2000Hz to meet the demands of the broadcast industry, especially important for events with rapid camera movements and HD format.
Secondly, be aware of brightness levels. Depending on the location, you might have different needs for brightness. Outdoor events will obviously require an incredibly high brightness to contrast the sunlight. However, if the event is indoors, you must have a lower brightness in order to avoid solarization. To provide you with a practical example, an average frontal brightness is 2,000 to 3,000 NITs for indoor use and up to 5,000 to 6,000 NITs for outdoor use LED screen.
About the Author
Get the FREE ebook specifically for LED Screens Buyers by Fabio Aversa. He is a recognized LED Displays specialist and marketing manager for Euro Display, a leading LED Screens manufacturer and supplier company.