Page 1:Samsung PN51F8500 51-Inch Plasma HDTV Review
Page 2:Packaging, Physical Layout and Accessories
Page 3:Setup And Calibration Of The Samsung PN51F8500
Page 4:Real-World Testing: Movies and 3D
Page 5:Real-World Testing: SmartHub
Page 6:Measurement And Calibration Methodology: How We Test
Page 7:Results: Brightness and Contrast
Page 8:Results: Grayscale Tracking and Gamma Response
Page 9:Results: Color Gamut and Performance
Page 10:Results: Viewing Angles and Uniformity
Page 11:Results: Pixel Response and Input Lag
Page 12:Video Processing and 3D Crosstalk
Page 13:Samsung PN51F8500: We Still Love Plasma
Only two companies still make plasma TVs, so we’re excited to check out Samsung’s latest, the PN51F8500. It boasts 3D, SmartHub 2.0, and superb image quality. In the vast ocean of LCD televisions, it’s a compelling choice. Our lab results show you why.
I remember seeing my first flat-screen TV in a Circuit City many years ago. It was a 32-inch plasma panel, and it was selling for $5000. Back then, LCDs were just starting to appear on desktops, but the technology wasn't yet available in large enough screen sizes for the living room. If you wanted a television you could mount on the wall, plasma was it.
As you already know, the tables turned completely. LCDs can be found in sizes up to 80 inches, while prices have dropped tremendously. Where every manufacturer once offered multiple plasma models, now only LG and Samsung continue to market them.
Our latest HDTV review subject is the PN51F8500. Samsung sent us the 51-inch model to look at, but you can also get it in 60- and 64-inch formats. They all have the same features and differ only in price: $1800, $2400, and $3100, respectively.
|Max Refresh Rate||96 Hz|
|Speakers||2 x 10 W|
|Audio Out||1 optical|
|Control||IR in, RS-232|
|46.9 x 29.4 x 10.6 in|
1182 x 741 x 267 mm
|Panel Thickness||2 in / 50 mm|
|Bezel Width||1-1.5 in / 25-38 mm|
|Weight||51.6 lbs / 23.4 kg|
If you visit any A/V forum, you will undoubtedly find threads devoted to debating LCD versus plasma technology. Obviously, LCD won decisively in the marketplace. If plasma penetrated the living room first, how did this turn of fate occur?
For those who have not previously considered a plasma HDTV, let me offer a little primer about how it differs from LCD. Firstly, the only thing the two technologies share in common is that they’re flat panels. After that, the similarity ends.
LCD is a light valve display, which means that light is filtered and polarized by the pixel structure to produce the red, green, and blue primary colors. Plasma, on the other hand, uses pixels that are self-illuminating. The red, green, and blue sub-pixels are like tiny light bulbs. They’re filled with a gas, which, when stimulated by current, cause a phosphor deposit on the inside of the cell to glow. The cell’s brightness is then controlled by varying the voltage.
The principal advantage of this approach is greater contrast. You can’t turn a plasma pixel off completely like a CRT phosphor. But at the minimum voltage, it’s much darker than an LCD pixel. Superior black levels translate to a greater dynamic range. If you agree with us that contrast is the most important component in image quality, then you might consider plasma for your next HDTV purchase.
The main disadvantage is power consumption. A large LCD panel with an LED backlight might draw 100 watts at peak load. Plasmas can draw as much as 500 watts displaying bright content. And an LCD will give you more light output at a given current level. If you have a room with incoming sunlight, a plasma might not muster enough brightness for your application.
Before we move on, I should explain a spec you may have seen in Samsung’s (and other manufacturers') marketing: 600 Hz sub-field drive. Since plasma, like CRT, is not a sample-and-hold technology, there is a dark period between each frame as it is flashed on the screen. This is the reason for plasma’s superior motion processing and lack of blur. The actual amount of time each frame appears is only one or two milliseconds. So, to maintain brightness and prevent flicker, the image is refreshed multiple times per frame. If the sub-field rate is 600 Hz, it means that each frame is refreshed 10 times. Ten refreshes x 60 Hz = 600 Hz.
- Samsung PN51F8500 51-Inch Plasma HDTV Review
- Packaging, Physical Layout and Accessories
- Setup And Calibration Of The Samsung PN51F8500
- Real-World Testing: Movies and 3D
- Real-World Testing: SmartHub
- Measurement And Calibration Methodology: How We Test
- Results: Brightness and Contrast
- Results: Grayscale Tracking and Gamma Response
- Results: Color Gamut and Performance
- Results: Viewing Angles and Uniformity
- Results: Pixel Response and Input Lag
- Video Processing and 3D Crosstalk
- Samsung PN51F8500: We Still Love Plasma