Singapore Hardware Zone

ViewSonic GS771
Reviewed by Ang Chi Hoe (28/08/99)

Product Specifications

Dimensions

410 (W) x 416 (H) x 385 (D) mm

Display

17" (16" viewable diagonal), 0.27 mm dot pitch.

Input Signal

RGB Analog.
Horizontal Frequency :30-70 KHz.
Vertical Frequency : 50-180 Hz.

Compatibility

PC and Mac

Connectors

Video: 15 pin mini D-sub (standard VGA connection).
Power : 3-pin plug.

Max. Refresh Rates

1280x1024 @ 66 Hz
1152x870 @77 Hz
1024x768 @ 87 Hz
800 x 600 @ 110 Hz
640 x 480 @ 135 Hz
640 x 400 @ 160

Video In Bandwidth

108 Mhz (max)

Max Brightnessy

113 cd/m^

Misconvergence

0.30mm (max) at center
0.40mm (max) at corner

Swivel Angles

Rotation left : 90 degrees
Rotation right : 90 degrees
Tilt Up : 13 degrees
Tilt Down : 4 degrees

Weight

Net : 16.2 kg
Gross : 19.2 k

Regulatory

Safety : UL, CSA, TUV/GS, HC, NORDIC, DHHS.
EMC : FCC B, VCCI B, IC-B, CE/CISPR 22-B, BCIQ, C-Tick.
Others : MPR II, TCO '95, ISO9241-3 (Erognomics), Energy Star.

Other Features

Compatible with DDC1 and DDC2B.
Plug and Play supported.

Driver Support

Win3.x/95/98/Mac

 

<Introduction><The Good><The Bad><Conclusion><Rating>

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Introduction

  For just about every computer user, the monitor is the main output interface we have with the system. Many have to stare at monitors several hours a day. Hence, it is imperative that we chose our monitors carefully to avoid damaging our eyes. A stable and crisp display can make work more enjoyable while a flickering display can lead to fatique or even a host of health problems.

  In this review, we take a look at the 17 inch GS771 (GS for "Graphics Series") from ViewSonic. At a retail price of about S$568, the GS771 is _pricing_ itself as an above average general use monitor. It is targeted towards most of us who use computers to do word processing, surf, play games, dabble with computer graphics and don't mind paying a bit more.

  In The monitor I used for comparison in this review is the Mitsubishi DiamondPro 87TXM. It is an old monitor (more than 2 years old) but can still serve as a high standard to compare the GS771 with.

  Lastly, the video card I've used is the Matrox Millenium G400 which has 2 simultaneous monitor outputs. This allows me to compare the same image/text on the 2 monitors side by side at the same time for a direct comparison.

The ViewSonic GS771

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The Good

  The viewable area of the GS771 is 16". This is the standard viewable area for a 17" monitor. I am talking about the actual area where that you can see an image, not simply the glass area of the monitor. So you can be sure you are not getting short-changed (no puns intended :) here.

  The GS771 has a short depth (ie. The length from the back of the monitor to the front viewable part of the monitor). See the comparison with 2 other monitors below :

  DiamondPro 87TXM Philips 107E ViewSonic GS771
Width 41 cm 41 cm 41 cm
Height 40.9 cm 40.8 cm 41.6 cm
Depth 42.5 cm 43 cm 38.5 cm

  The usual depth for a 17" monitor is about 420 mm (e.g MAG DJ707, CTX VL950S, NEC Multisync 70). Newer "small footprint" models sport a 380 mm depth (e.g NEC Multisync E750). The new GS771 clearly belonged to the latter class.

  So how significant is 4 cm ? Click on the picture below for a close comparison between the GS771 with the DiamondPro 87TXM.

Click for a larger picture

The GS771 is on the right.

The 4 cm savings can be crucial if you have a small tabletop like mine. Many of us place our keyboards in front of the monitor. So 4 cm might determine if you can place your keyboard on the table or not. It can also provide room for a wrist rest.

  In the resolution department, the GS771 looks good up to 1152x864. It would have been good at 1280x1024 too if not for the visible flickering. I shall elaborate more in "The Test" later.

  For the discerning, GS771 comes with ICM color profile files for Windows 98 color matching. Put simply, ICM color profiles allow you to match what you see on the screen with your output.

  The monitor controls are good. In the picture below, monitor controls comes in the form of an On Screen Display (OSD) and 5 buttons (including the on/off switch). The control system is highly intuitive. It is great for people like me who don't read the manual unless I really can't figure out the controls (or have to write a review :p ). Brightness and Contrast - the 2 most used monitor controls are directly available by pressing the "up" and "down" buttons, bypassing the main OSD menu. Then there is also the very useful Viewmeter which can display the current refresh rates. Again, this dandy feature is within easy reach by pressing the "2" button.

Click for a larger picture

On Screen Display main menu


Viewmeter showing the refresh rates.


The 4 control buttons.
"1" provides access to the OSD.
"up" brings up brightness control.
"down" brings up contrast control.
"2" brings up the Viewmeter.
On/Off button is somewhere to the right of these buttons.

  Another useful detail is simply that the data cable is detachable from monitor. This allows you to position the monitor without the hassle of a cable dangling around.

The Test

  The monitor was supplied with different video resolutions to see the visual quality of the picture. I found that the refresh rate of the GS771 is the deciding factor in the quality of the picture between resolutions. Color contrasts, shading transistions, text clarity/sharpness and line clarity are about the same at different resolutions. Hence, I've focus mostly on refresh rates.

Resolution
(width x height in pixels)

Colour Depth
(bits/pixel)

Maximum
Refresh
Rate Achievable

(Hz)
Comments
800x600 16/32 110 (maximum rate tried, not rate achievable)

Text looks sharp around the edges. Comfortable for the eyes.

Photographs looks good. There is sufficient blending and contrast where required.

Maximum of 110 Hz refresh rate is the rate I've tried, not actual physical limit. I found no significant improvement to the stablility of the picture beyond 100 Hz.

1024 x 768 16/32 88

Text is again, sharp. Refresh of 88 Hz still provide a comfortable rate for the eye, though clearly not as rock solid as 100Hz.

Complex Wireframe lines in CorelDraw are clear and sharp.

Simple graphics colors are vibrant. Smooth shading transitions. Looks good overall but not as fine grained as the DiamondPro.

1152 x 864
(my recommended resolution)
16/32 78.6

At this resolution, the refresh rate is still comfortable enough.

However, one look at the 94Hz refresh rate of the DiamondPro and you can tell the GS771 is significantly less stable, especially at close up.

1280 x 1024 16/32 66

Text - Good contrast, sharp. But small fonts look slightly broken.

Horizontal lines look broken at close up but acceptable at a distance of around 50 cm.

Biggest downside - refresh rate too low. Visibly flickering. Would be great for drawing/painting/text at this resolution if not for the low refresh rate.

 

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The Bad

  There are no major problems with the monitor. Some minor complains below though.

  Refresh rate at 1280x1024 resolution. At 66 Hz, the flickering is too much for me. That is why 1152x864 at 78.6 Hz is my recommended resolution.

  Moire distortions. These distortions turns closely spaced vertical or horizontal lines wavy and make them look like ripples. They are not obvious in most situations unless regular, closely spaced patterns are involved. Anyway, it is a common problem to many monitors.

  The GS771 screen is not professionally flat. The pictures below illustrates my point.

Click the thumbnails below for a closer comparison.


Top view - comparing the horizontal flatness. GS771 is the one on top.


Side view - Comparing the vertical flatness. GS771 is the one on the right.

  Horizontally, I would say GS771 is fantastically flat. The horizontal curvature is, as far as I can visually tell, as good the DiamondPro. The vertical curvature is significantly greater than the DiamondPro (which is completely flat vertically). What all this means is that unless you have been using high end monitors with screens that are nearly as flat as a sheet of glass, you will find GS771's screen somewhere between "it looks good" to "wow, it's pretty flat".

 


Test System Configuration

Processor Intel Celeron 300A o/c 450 Mhz
RAM 128 MB PC100 Hyundai SDRAM
Motherboard Abit BH6
Video Card Matrox Millenium G400 Dual Head
Hard Disk IBM Deskstar 16GP
Operating System MS Windows 98 Build 4.10.1998
Other software used Adobe Photoshop 5.0, CorelDraw 6.0

 

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Conclusion

  As far as 17" monitors go, the GS771 is "above average" enough to warrant a higher price than many peers. It is not a high-end monitor, but certainly is quite a performer in its own niche. So for most typical PC users, this monitor is a good investment. Personally, I would definitely cough out more money on a monitor. Afterall, it is the window into your computer and is not something you have to upgrade often.

 


RATING

Rating (Out of a maximum of 5 stars)

Installation ***
Performance ****
Price ***

Overal Rating : 3 1/2

Any comments/remarks? Submit your views to this review here.


 

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