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(Reviewed) $400 2560x1440 IPS no-AG 90hz+ Achieva Shimian QH270 and Catleap Q270 - Page 116

Poll Results: Vote when your Achieva/Catleap monitor comes in.

 
  • 41% (232)
    Achieva QH270
  • 2% (12)
    Achieva QH270 (DOA / didn't recieve)
  • 8% (46)
    Achieva QH270 (Dead pixel(s) / flawed panel)
  • 40% (224)
    Catleap Q270
  • 1% (8)
    Catleap Q270 (DOA / didn't recieve)
  • 5% (33)
    Catleap Q270 (Dead pixel(s) / flawed panel)
555 Total Votes  
post #1151 of 4784
Quote:
Originally Posted by Somenamehere View Post

Seconds away from pulling the trigger. Anyone want to comment on the square trade warranty ? Do people think its worth it ?

I thought for $54 bucks it was worth the peace of mind it gave me. Some have said that if/when the time comes you need it, they will tell you the warranty was invalid and refund your money for the warranty. I figure that's not THAT bad, as it would cover almost half the cost to ship it to Korea where there is a 1 year warranty on it.

However, if it is indeed valid, then it would seem the Square Trade warranty is a no-brainer. wink.gif
Quote:
Originally Posted by AchuSaysBlessYou View Post

It won't apply. As much as people here want you to believe. Don't believe me? Ask squaretrade, or find out the hard way, when they simply refund you your $60 and you're stuck with a broken monitor

What were the questions you asked the Square Trade rep, and if possible, could you give us contact info? When I was looking at the ST warranty, I was hesitant as well, but looked through it all, and could see nothing that makes my monitor not covered. They even say if the product "does not have a USA Warranty", which this product doesn't. I'm not saying you're wrong, but if you have some sort of documented proof, other than what's in the ST agreement, I'd like to see it. smile.gif It would definitely help new buyers with a more solid answer on the subject.
Edited by Demented - 3/6/12 at 12:27am
Hephaestus
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Hephaestus
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post #1152 of 4784
Quote:
Originally Posted by stryker7314 View Post

Anyway the driver can be modded to accept higher pixel clocks? Is it gpu dependent or are all AMD cards limited by the driver? Kind of a bummer if not.
If there's a way, I haven't found it. I doubt it's GPU dependent.

Quote:
Originally Posted by necriss View Post

There appears to be micro-scanlines when running at 100hz. Don't have a camera capable of capturing them as they are extremely faint, need to squint to realize they are there. Doesn't affect normal use but can get annoying in photoshop, tends to be more prevalent on grayscale images than color. Simple fix is to swap back to 60hz. Might just be me, would be nice if someone could do an image quality test at varying refresh rates.
I know the lines you're talking about. The lines are actually still there at 60 Hz, just not as strong. I made a test image a while back:

lines-test.png

Both halves are supposed to have faint horizontal lines, but on a monitor that has the lines, the lines on the monitor cancels out the lines in one half of the image and makes them stronger in the other half.

I wouldn't worry about them. I've seen those lines on most H-IPS panels, but hardly anyone seems to notice them.
post #1153 of 4784
Trigger pulled, skipped the warranty. I'll post when I get it.
    
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post #1154 of 4784
Quote:
Originally Posted by Somenamehere View Post

Trigger pulled, skipped the warranty. I'll post when I get it.

Which did you get, and from which seller? Would be helpful for others to know, so we can compare as far as delivery times, packaging. smile.gif
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post #1155 of 4784
Quote:
Originally Posted by ToastyX View Post

If there's a way, I haven't found it. I doubt it's GPU dependent.
I know the lines you're talking about. The lines are actually still there at 60 Hz, just not as strong. I made a test image a while back:
lines-test.png
Both halves are supposed to have faint horizontal lines, but on a monitor that has the lines, the lines on the monitor cancels out the lines in one half of the image and makes them stronger in the other half.
I wouldn't worry about them. I've seen those lines on most H-IPS panels, but hardly anyone seems to notice them.

cool thanks for the explanation.
post #1156 of 4784
my ACHIEVA Shimian QH270-Lite just got shipped, i ordered it on the 4th, lol faster than neweg, which i ordered the parts for my new pc build the same day as the monitor and they are still in order verification.
post #1157 of 4784
Dream-Seller screwed me over a bit. I paid on 2/28, it was "dispatched" on the 29th, ...got my tracking number 3/5 and today (3/6) my monitor is in Busanjin, whatever that city is. Oh, and the price has come down.
Still, if I get a good monitor and don't pay customs (he shipped with Korea Post---in my country, if shipping with DHL-Fedex-UPS from a non-EU country, you'll definitely pay) I won't mind.
    
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post #1158 of 4784
Quote:
Originally Posted by John-117 View Post

Dream-Seller screwed me over a bit. I paid on 2/28, it was "dispatched" on the 29th, ...got my tracking number 3/5 and today (3/6) my monitor is in Busanjin, whatever that city is. Oh, and the price has come down.
Still, if I get a good monitor and don't pay customs (he shipped with Korea Post---in my country, if shipping with DHL-Fedex-UPS from a non-EU country, you'll definitely pay) I won't mind.

thats wierd-i got my tracking number today as well, i bout from dream-seller
post #1159 of 4784
Quote:
Originally Posted by John-117 View Post

Dream-Seller screwed me over a bit. I paid on 2/28, it was "dispatched" on the 29th, ...got my tracking number 3/5 and today (3/6) my monitor is in Busanjin, whatever that city is. Oh, and the price has come down.
Still, if I get a good monitor and don't pay customs (he shipped with Korea Post---in my country, if shipping with DHL-Fedex-UPS from a non-EU country, you'll definitely pay) I won't mind.

yeap me to, i paid on 2 march.
hmm about tax/custom i ask dream seller what price he marked in the parcel and he told me
'
Quote:
The price value on the parcel was set as $100.
If you have any further question, please feel free to ask. Thanks again. Have a good day!

- dream-seller

does green-sum marked the parcel at low price to ?
post #1160 of 4784
Thread Starter 
Quote:
Originally Posted by ToastyX View Post

Measurements and color information for the catleap:
The brightness ranges from 25 cd/m² to 315 cd/m². There are 30 levels of brightness, and each button press averages around 10 cd/m².
Native contrast is around 1025:1 in the middle of the screen. Calibration will bring that down to around 875:1 or higher, depending on the white point.
Native gamma is actually pretty close to 2.2 out of the box.
The native white point is too green, and the brightest white has a different hue from the rest of the grayscale. This is not unusual for LG IPS panels, but most IPS monitors with color controls have the default contrast set one or two notches below the brightest white to avoid this. Since this monitor has no color controls, it just shows the panel's native output. In my experience, the white point being too green is also common with LG IPS panels, but this can vary from panel to panel. These are the main reasons why it looks "off" to me out of the box. With calibration, it looks great.
Several points I should add, colorimeters are not totally accurate with white point measurements, and measurements can drift with age, so results can vary from unit to unit and between different colorimeters. The results can also vary on different parts of the screen since most monitors are not perfectly uniform. My particular panel is slightly redder at the top edge and slightly yellower at the bottom edge, but most of the middle is consistent. Colorimeters also need different filters for different backlights (especially for wider gamuts), so that also affects accuracy. This monitor's gamut is close to sRGB, so that's not a major problem.
I have three colorimeters:
Retail Eye-One Display 2 (oldest)
SpectraView-branded Eye-One Display 2
ColorEyes-branded XRite DTP94B
The SpectraView Eye-One Display 2 was unusable on this monitor. I don't know if this colorimeter is failing or if it just has different filters for wider gamut monitors, but it wanted to add way too much red.
The retail Eye-One Display 2 and the DTP94B were pretty close to each other. Both removed a lot of green along with some red, with the DTP94 leaving slightly more green. I always preferred the Eye-One Display 2 over the DTP94B because the DTP94B always left a little more green than I liked. The retail Eye-One's result looks more natural to me, but I have no way of knowing for sure which one is more accurate without a spectrophotometer.
Another problem I should mention is the Eye-One Display 2's brightness measurement drifts downwards when it gets warmer. The DTP94B doesn't have that problem, so I did the brightness measurements with the DTP94B. Black point measurements are also hard for colorimeters, so it's hard to get exact contrast values. The DTP94 only reports to two decimal places.
I don't usually like to post color profiles since colors can vary from unit to unit, but since this monitor benefits greatly from white point calibration and the gamma doesn't change much, I will include three profiles here (all gamma 2.2):
catleap-6500k.icm - This is the one produced by the retail Eye-One Display 2. Contrast is around 875:1.
catleap-d65.icm - This is the one produced by the DTP94. This one has slightly more green. Contrast is around 900:1.
*** Edit: I just noticed the Eye-One's profile makes blues purplish in color-managed programs, so the DTP94 (D65) profile is probably the better one to use. ***
To get 115-120 cd/m² with those profiles, use 10 button presses up from the lowest brightness.
catleap-native.icm - This one keeps the native white point while adjusting the rest of the grayscale to match. Since the white point can vary from unit to unit, use this if the other two profiles look strange to you. This one preserves the native contrast ratio.
To get 115 cd/m² with this profile, use 8 button presses up from the lowest brightness.
I also need to write up how to load these profiles. ATI/AMD GPUs are capable of displaying 8-bit color from a 10-bit LUT with dithering just like professional LCD monitors do, which allows you to calibrate without getting banding, but you'll need a third-party LUT loader because the LUT loader in Windows only supports 8-bit values. I don't know of a way to enable dithering with NVIDIA cards in Windows, so NVIDIA users will get some banding when using a color profile. Mac OS X enables dithering for both ATI/AMD and NVIDIA GPUs, so gradients should always be smooth there.
That leaves me with a conundrum:
ATI/AMD: no banding with calibration, but can only get 85 Hz
NVIDIA: banding with calibration, but can get 100 Hz
I wish there was some way to get one or the other to do both.

In the first post, ty.
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