Hazro HZ30W - Strengths and weaknesses

Soldato
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There has been some call for a separate thread for the Hazro HZ30W, which has recently come back into stock at OcUK at a very attractive price. This thread is for discussing the various strengths and weaknesses of the monitor, and for those who own one to help those considering buying one to make an informed decision. See also the big Hazro thread here.

As many of you will know, the Hazro HZ30W is a 30" screen featuring an S-IPS panel, available at a much reduced cost relative to other 30" screens. The screen has only the most basic features in order to keep the end cost low. The basic principle is that advanced configuration of colours and other standard options are readily available through software, and so including them in the OSD is be somewhat redundant.

The screen can be bought from OcUK here. Also, for a review look here

The screen is wide gamut (92%), with a 2560*1600 resolution. The input lag is low for an S-IPS screen; at 7.5ms it is better than many TN panels. Also, the black point is reasonably good for an S-IPS panel (subjectively, box 5 and onwards are visible in this test).


hz30W.jpg



I recieved one of these screens recently, and my initial impressions are fairly positive.


*** First off the good points:

The colour reproduction is excellent. Coming from a TN panel I was expecting an improvement, but the HZ30W is in another league. I was also prepared for unrealistic colors, owing to the 92% NTSC gamut, but this does not seem to be the case. The colours look vibrant, without seeming unrealistic (at least to my eye).

I'm generally very sensitive to input lag, and have not been able to detect any lag whatsoever with this screen, even in fast paced FPS games. So, in this regard the monitor lives up to its billing.

As far as response times go, I have not noticed any ghosting or other adverse effects. The monitor performed well in this regard in the TFT central review (despite its relatively high stated response time of 12ms), and this is reflected in my testing. I also tested the monitor in a couple of games, with v-sync off. The visibility of tearing was minimal, certainly no worse than with my 2ms-response TN panel. If anything, this screen offers a small improvement (although of course enabling vsync is still going to be the best option, if your framerate is high enough).

There was some suggestion in the TFT central review that such a large, high-resolution screen could lead to an apparent loss of quality when watching high- and standard-def DVDs in fullscreen mode. This is not something I would agree with. Of course, viewing a standard-res DVD close up is going to reveal the inherent lack of quality (due to low output resolution), but I certainly don't feel this is highlighted by the screen. Watching DVDs at a comfortable distance is a good experience with the Hazro.

The build quality is generally high. The aluminium frame is quite sturdy and (to my eyes) elegant.


*** Now the not so good:

First, I must mention the stand. There is no vertical hight adjustment, and for me the screen stands about 10 - 15cm too low. I think I will end up raising the monitor off the desk slightly. This being said, I am quite tall and have a relatively long body, so you might find it sits at the right height for you.

Another point of note is that the screen comes with only a single DVI input (although you will likely know this already from the reviews). For me this is no issue, as I intend to use it purely as a PC monitor, but those looking for it to double as an HDTV might perhaps require more flexible input options.


NOTE: If you use windows XP, then do yourself a favour and download the drivers for the Dell3007 in order to get 2560*1600 resolution in games in XP. click here.


In conclusion; this is an excellent monitor with a pricetag which is unmatched for a 30" screen. The picture quality is top notch, with clear text and vibrant colours. For the price, you can't do better. Excellent buy IMO.
 
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Is it really a bad idea to run 1920*1200, can anybody provide a photo of this or clarify if there blurring of text etc?

Does the 30" have the same issues as other ones, such as the 26 or 24? Or is it the best out of the bunch?

As far as I know, the 30" doesn't have any of the issues that the 24" and 26" screens have been suffering from ('banding', 'snow' etc).

As for the 1920*1200 resolution, you really don't want to be running in this resolution for desktop work. The interpolation makes the text pretty fuzzy. This is a feature of all LCDs though, and nothing to do with the Hazro. You can get away with it for games and for pictures, although it isn't ideal, but for text you really need to stick to the native res.
 
Hi there
In regards to resolution issues never had an issue with Hazro or DELL, 2560x1200 works in both windows and games, but again I am on Vista.

Yeah, I just tried left 4 dead in vista 64, and there was no problem. 2560 was available where it wasn't in XP. I'll check a couple of other games to make sure it's actually an XP issue, and then I'll write to Hazro and see what they make of it.
 
Hi there

I can tell you for sure your issue is software based, nothing wrong with the monitor.

The issue will be one of the following:-
1. Windows XP
2. Graphics Card (No doubt the drivers)
3. Monitor driver (Should not need one but XP may require so best advice is get hold of the DELL 3007WFP/3007WFP-HC driver.

Yeah, I'm fairly sure it's a windows XP issue now. I suspect that most people who would buy a 30" monitor are using vista already, but I guess I'm a bit of an OS luddite :p

I can confirm that the full native 2560*1600 resolution works fine in every game I've tested in Vista, including: L4D, HL2, supreme commander, fallout3. The option doesn't appear in crysis, but can be forced (unlike in XP). Not that anyone would want to run 2560 in crysis anyway! I'll try the dell drivers and see if it helps at all in XP.

I'd like to reiterate: This monitor represents excellent value for money; you won't find a 30" screen for even close to this price anywhere else. I'm very pleased with the screen, and it has no hardware-based issues whatsoever. It's a very high quality piece. I'd recommend it to anyone who would like a 30" screen but thought they couldn't afford one.

*** edit - I tried the Dell 3007 drivers for XP, and they fix the issue entirely :D I've updated the original post to reflect this. Thanks for the suggestion, gibbo!
 
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Is that really important though?

Im just trying to justify the extra £££ compared to a 26" version.

I think the main justification for the extra money is the extra real estate. With the 30" monitor you're looking at 4.1M pixels, while you're getting 'only' 2.3M pixels with the 26".

I've never actually used a 24" or 26" hazro, but according to the review on TFT central, the main difference between the two is the black level. The HZ30W has a black-point of 0.24, while the HZ26Wi comes in at 0.58. For me this is the key difference. Black level is a weakness of all IPS screens, and I'm not sure I'd want it any worse than this screen. Although the HZ30W is good enough for me, this is the one area in which my old TN panel was slightly better.

The difference between the 26 and the 30 is 'only' £150 anyway.
 
Do you know if games would still look ok if they are run at 1920 x 1200 on this panel? Thats why I cant make my mind up to go 30" or go 26"

I've tried games at 1920*1200, and to me they look a bit 'blurred out' when scaled up to full screen. The couple of games that I can't handle at full res, I've just been running without scaling. This isn't ideal, but the active screen size is still around the same as a 23" screen.
 
And also can you just put my mind at rest with the mouse lag, I know this is ment to be uber low. Just wanted you to clarify! :D

No mouse lag or any kind of input lag whatsoever :)

This is something I'm especially sensitive to, so I was glad to see it living up to its billing :)
 
Im so itching to buy this screen. . .

How many connections does this have?

Also am I right in saying that my gfx card will be ok with this (8800GTS, G92). I take it you get all the necessary leads for this Dual Link connection, not that im sure why you need it! lol

Cheers for all the info by the way

It just has the one connection, a dual-link DVI connector. As I understand it, cutbacks like this are one of the main reasons that Hazro can sell the screen so cheaply. Also, the lack of scalers and other input options helps keep the input lag very low. But yes, it comes with the cable you need to hook it up to your machine :)

The 8800GTS will run the screen just fine. Whether it will run games at native 2560*1600 res fast enough for your tastes is another matter though! I guess it depends what you're likely to be running.


- btw - can we get some pics of the screen from those who have purchased them? Its still hard to imagine them on my desk. Anyone buy two of these for dual setup?

I'll see if I can dig out my old digital camera and get a picture of the screen on my grubby desk. Been a long time since I used a camera actually...

As for people buying two... well quite honestly I can't even imagine having two of these beasts! The only way I could see two 30" screens being viable is if you rotated them into portrait mode. This is another area where Hazro have cut back to help reduce the price though (the screen doesn't swivel to portrait).
 
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i had a look during my lunch break, and i can tell you already that for somebody used to a 17" CRT its absolutely massive! :D
just 2 more hours before i can go home...

Heh - hope you like it :)

As far as individual monitor issues, I came out with just a single dead pixel which is fine by me as it's not in the central part of the screen. Also, a little bit of panel non-uniformity; a sligthly darker vertical band is visible towards the right of the screen (about 2/3 the way along the screen). It's only visible against a uniform-coloured dark-ish backdrop though (like the OcUK forums background). I guess this is due to a slight ripple in the film itself or something... Anyway, I had no serious issues with mine so I'm hoping you won't either :)
 
Hello!

I take it this screen won`t work at all with a graphics card that has no dual-link compatibility???

Not 100% sure, but I imagine it WOULD work, but be limited to a maximum of 1920*1200. Which you wouldn't want really.

I have to point out though that there are plenty of fairly cheap graphics cards on the market with dual-link DVI outputs, and if you're thinking of spending ~£700 on a GPU it might be worth picking one up :)
 
When people are talking about the black level on screen. Are you referring to the richness of the black colour itself or its ability to reproduce a shade of grey? Hope that makes sense!

It's basically the ability to distinguish between the darkest shades. With a poor black level, the darkest shades are indestinguishable from each other. Check out this test (should be done in a darkened room):

http://www.lagom.nl/lcd-test/black.php#blacktest.png

At default brightness the first square I can distinuish is number 5.

Unfortunately black levels are the main weakness of IPS panels. Based on specs, the HZ30W is one of the best IPS panels around, and better than a few TN panels. That said, I doubt it can compare to a CRT.
 
Take that as a yes then! :p:p

I'm not sure scoobie - I haven't used a hazro 26" or an imac.

Remember though that to compare the tests you have to be in a dark room. With my light on there's an extra couple of squares that blend in to black at the low end of the scale.
 
I can't seem to get the dell 3007 driver to install. Both right-clicking on the inf file and clicking install doesnt seem to do it, and when i try to update the driver in device manager, it says that there is no driver found in that folder.

I used the 'have disk' option, rather than the 'search this folder' option. Once I pointed it to the actual file, it installed itself just fine, and voila - 2560 in XP.

I've since moved on to vista64 though, so meh :p
 
Ok well say I go for the 30" im guessing that all the colour adjustments etc all need to be done through the video drivers right?

I dont have anything to calibrate this screen with, is it really worth getting some form of calibrating device, if so which one?

I will be using Vista64, is there going to be any combatibility problems?

Running heavy games like COD4, 5 etc at 1920x1200 (using gfx card driver) is the game going to look ok?

:)

Colour adjustments are made through the video card drivers. I didn't calibrate the monitor, and it looks great to me. I've never been the most sentitive to colour accuracy though. No compatability problems with vista64 (that's what I'm using). The only problems I had were in windows XP.

As for running at 1920*1200 - yes, it looks okay. But as with all TFT monitors, running at less than native resolution introduces a slight smearing effect. When you do upgrade your video card, though, you will have another level of resolution and clarity to go up to.
 
so i take it, if something goes wrong with it thay can`t fix, i`ll probably have to give them more money to get the new upgraded release? because if is the case, then i think i`ll just wait till the new panel version is relesed.

As I understand it, if the product dies under warranty then they are obliged to either repair the item, or replace it with another of equal or better specification. So, if you sent it back and the 3007-screen versions were no longer available, you would get a 3008-screen version as a replacement.

What graphics card do you use with your 30"?

I'm using a 4870x2.

Looking at benchmarks, the framerates on the current single GPU solutions drop off fairly heavily at 2560, whereas the x2 (and particularly nvidia's upcoming card the GTX295) seem to hold their performance fairly well. Gaming at 2560 is pretty awesome though :D Also I sit fairly close to the screen, so in FPS games I kind of get that imax effect :)
 
Have any of you noticed pixel faults, of any kinds, on your monitor? I have 1 stuck pixel, always green on a dark background.

Also, have any of you noticed darker vertical "waves" on a dark background? Try setting the desktop background a solid color, and use a dark gray like #333333.

20 cm from left I have one of those going from the top and, only, almost to the bottom. There a few more but they are almost not noticeable. Funny thing is that this is very hard to observe on black or white background. It's also non-existent on green, reed and blue backgrounds. Only the dark grey tones produce this error, as mentioned #333333 is the "worst" color. What do you call this phenomenon? I can't take any shots as my camera was stolen recently.

Given the pixel fault and the dark vertical "wave", I'm planning to send this back for a refund under the Distance Selling Regulations 2000.

I had a single 'pixel fault' - a dead pixel at about [0.2,0.5]. It's not in the central region of the screen, and I rarely ever notice it. It doesn't really bother me.

As for the second issue... yes - I get a darker "vertical wave". It's odd... it's invisible under almost all cercunstances, except for a dark (but non-black) uniform background. In fact, the colour that shows it up strongest is the OcUK forums background!

The 'vertical wave' is kind of annoying, but it's also fairly subtle. I assumed it was down to some non-uniformity in the flatness of the actual panel, but perhaps not. The thing is though, it's invisible virtually all the time except for when I'm browsing the OcUK forums, so it's not really a big issue for me.
 
Of course, they seem to be out of the 3008 model now. Anyone know what the difference was in screens and if there is a newer screen coming out soon?

The 3008-version should be the one you see for the future (gibbo explained about the panel availability issues earlier in this thread, before he left).

As for the difference between the two versions, well there is no review of the 3008-based panel (as far as I know), so it's difficult to say. Certainly the 3008-panel has a higher gamut (102% vs 92% IIRC), and slightly lower rated response time, but until somewhere like TFT central does an in-depth review we won't know which is the screen to have. There are plenty of other factors which can't be deduced from the specs (input lag, black-level, ghosting, colour accuracy etc).

Certainly the performance of the hazro screens does not exactly mirror the dell screens on which their panel is based.
 
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