Monoprice Zero-G Slim 27" IPS Monitor Review
by Chris Heinonen on August 26, 2013 12:00 AM ESTAll calibrations are done using CalMAN 5.1.2 software with an i1Pro meter and a C6 meter. Our targets are 200 cd/m^2 and gamma 2.2 for the pre-calibration and post-calibration measurements with the sRGB colorspace. We also try for 80 cd/m^2 and the sRGB gamma curve to see how well a display handles a more demanding professional setting.
| Pre-Calibration |
Post-Calibration, 200 cd/m^2 |
Post-Calibration, 80 cd/m^2 |
|
|---|---|---|---|
| White Level (cd/m^2) | 325.75 | 199.38 | 81.14 |
| Black Level (cd/m^2) | 0.373 | 0.335 | 0.322 |
| Contrast Ratio | 874:1 | 595:1 | 252:1 |
| Gamma (Average) | 1.309 | 2.195 | 3.051 |
| Color Temperature | 6744K | 6584K | 6648K |
| Grayscale dE2000 | 7.853 | 0.589 | 1.100 |
| Color Checker dE2000 | 7.611 | 0.942 | 1.000 |
| Saturations dE2000 | 5.413 | 1.083 | 0.995 |
Running the Zero-G at Contrast 50 and Brightness 50 with the sRGB preset, these are the best numbers I could obtain without a calibration. Since we are targeting 200 cd/m^2 and not 325 cd/m^2, that makes the numbers worse since we are expecting it to be 200 cd/m^2.
We see the gamma is incorrect and there are large grayscale errors. If I adjust the Brightness to 0 we see a gamma that is still wrong, and a blue color shift that gives us an average color temp of 8797K. The contrast ratio also falls to 580:1 and overall performance is worse.
If you only look at the Color Gamut chart, everything looks nice. Switch to the Saturations chart and you’ll see that the 40% red saturation target is past even where 60% should be. Blue and Magenta are over-saturated as well. The color checker chart confirms these saturation errors. This is why using only the standard gamut chart, as many people and print magazines do, provides little insight into actual performance.
Out of the box, the Monoprice Zero-G offers weird, strange performance that I haven’t seen in a long time. It also offers proof of why a panel in a monitor is only a small part of what leads to a quality display.
Calibrate the Monoprice and you have a totally different display. Look at the numbers and they are virtually perfect. If you are targeting 200 cd/m^2 you will have trouble doing better except with contrast ratio and black level. Those are still worse than what other monitors can produce.
Calibrate for 80 cd/m^2 and an sRGB target and you’ll see that performance isn’t quite as good as the 200 cd/m^2 target. The reason is the brightness control. Below are images from the CalPC client that CalMAN uses to calibrate. You can see the default line (in black) and the adjustments made to Red, Green and Blue channels for different output levels. Ideally these should track the default line.
On the Monoprice they start out much lower on the right. Because we have to correct for the brightness levels in the LUT, instead of using the display controls, we lose dynamic range and contrast ratio. The black level doesn’t change but the white level is dropping. We also don’t have as much room for adjustment for the gamma curve, which is why the sRGB one suffers.
CalMAN has corrected a lot of the flaws in the Monoprice compared to the default settings, but it has to take a large hit to contrast ratio to do so.
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wetwareinterface - Thursday, August 29, 2013 - link
okay how about buying an asus vx279? retail pricing is $299. it's a good 1920x1080 ips panel and is cheaper than the monoprice monitor. sure the monoprice is higher res but for the average consumer saving $80 is more important than 2560x1440. the argument that most people looking at these and korean cheapo ips 27" are looking for something better than a tn panel doesn't hold up. these are being sold to folks who want cheaper 2560x1440 ips panels. that market is predominantly art driven not gaming driven. gamers go for 120hz or 144hz and buy multiples, those are tn panel monitors at mid $200 price points.the article is spot on in it's assesment. if you are looking at an accurate high res monitor better off getting something pre-calibrated and slightly more expensive. if you are just going for resolution for gaming better off anyway with multiple narrow bezel 1920x1080 tn panels for the performance and resolution factor.
Scannall - Monday, August 26, 2013 - link
I went the eBay route a little over a year ago and bought a Qnix. It's been a great monitor. It was $285 at the time, though they have gone up some since. If you go that route odds are that it will be fine. The gamble is on those few that aren't, and getting service.Bob Todd - Monday, August 26, 2013 - link
You act like a 5760x1080 triple setup _must_ be TN at this price point which simply isn't true. There are cheap decent quality 21.5" 1080p IPS panels for $140 or less, that are also likely calibrated better than this thing.I'm glad the prices have finally started coming down on higher res IPS panels, but if the out of the box calibration is terrible I don't think it's much of a "deal". I almost bought the Nixeus when it first came out, but I ended up with an IPS Eyefinity setup for the same price (including an awesome stand).
owan - Wednesday, August 28, 2013 - link
22" IPS panels for $140 is a very new phenomenon, so that assumption was very true until the last year or so at most.Impulses - Monday, August 26, 2013 - link
" For years now it's been cheaper to buy 3 1920x1080 21.5" tn panels than a single IPS. "That's simply not true, unless you're making some kinda illogical correlation between IPS and displays that are 27"+... I bought three 24" 1920x1200 IPS displays from Dell for $300 each about two years ago (free shipping btw). Those aren't even the cheapest IPS displays around (by far) but I paid a premium for 16:10 since it looks better in a PPP configuration.
There's plenty of IPS displays that overlap in price with the better TN displays at those sizes (<24"). Good 27"+ displays are generally IPS (and have been considerably more expensive) because A) at that size TN's viewing angles become an issue even if you sit completely still and just move your head B) displays that large are obviously more of a niche.
IPS has always been more expensive, but it's been a while since it's been prohibitively more expensive. Personally I'd still take 2-3 smaller but better displays over 1-2 displays like this one, but that's more of a personal judgment call.
Mygaffer - Monday, August 26, 2013 - link
That is pure BS. Gamers love the detail of the high resolution panel and the image quality of the IPS panel. Go to a site like Overclock.net, which has a quite large contingent of people running these and the Korean import monitors, we are talking about hundreds of people, most of whom are gaming on the monitor.Input lag is negligible on these and not so far off the TN panels you assume every gamer would want. The competitive FPS players are going to buy 120Hz panels and that leaves everyone else who can afford it with one of these inexpensive 27" IPS monitors as at least an option.
owan - Wednesday, August 28, 2013 - link
I definitely disagree. I own a Korean monitor and was a TN user... but I was a TN user by price bracket rather than choice (even though I'm a gamer). To say "oh the extra $200 is worth it" completely ignores the fact that (probably) most people who are seriously looking at one of these in the first place are already really reaching to get one of these. For another $200 to get to a sale-priced Dell, those same people are now going to be paying 3-4X what they paid for their current monitorBigHugeNerd - Saturday, August 31, 2013 - link
Actually, you can. Check out the Eizo FS2333. I bought one for gaming. And it's better than any TN panel I've used in every way.Rolfathan - Tuesday, October 1, 2013 - link
I actually already got a Asus IPS monitor that has better color settings for my art. It has more even backlighting, as well as a better backlight, and while the differences between my Auira 2560x1440 IPS (got it for $350 at Microcenter, open box) are slim, the shades of red do seem better on the Asus IPS.My point is, I survived on FPS games at 14ms refresh times in 2004. I see no reason why I couldn't today, so I game at 2560x1440.
The games looking amazing, and since a cut down on the anti-aliasing (you don't need AA as much at this resolution, so when you played AA8 you can now cut it down to AA2 and it still looks better than AA8 did on a 1920x1080 monitor)
Now this compromise actually makes my games lag less. So I'm actually getting a more consistent experience this way. Not that lag was a constant issue, but it was very annoying when it did happen. So all in all, this kind of monitor has greatly improved my gaming.
Add to that being able to physically see "more" of what is going on around you, there's a chance you have an upper-hand in being able to see another player slightly before they notice you.
jaydee - Monday, August 26, 2013 - link
I agree it's a bit odd, the author would compare the retail price ($400) of the Monoprice 27" IPS against the sale price ($385) of the Nixieus. Compare retail price ($485 Nixeus) against retail price ($390 Monoprice), or sale price ($385 Nixeus) against sale price ($312 Monoprice).Side note, I'd like to see a review of the AOC Q2963M, 29" 2560x1080 IPS, which "sale price" is $370-400 ($400 at the moment), retail is ~$500.