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(Reviewed) $400 2560x1440 IPS no-AG 90hz+ Achieva Shimian QH270 and Catleap Q270 - Page 117

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 #1161 of 4784
i'm loving the tempered look after looking @ the macs. Now i'm kind of regreating ordering my capleat without since green is selling them with tempered glass now.
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post #1162 of 4784
Q for those with tempered glass - is the dust really that bad?

Pics would help - ty smile.gif

This deal is too good to resist but have to make sure that the dust isn't that bad...
post #1163 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.

what country you in?

I'm waiting to get confirmation from someone in Europe, but preferably Ireland. if I get hit, it'll be hard. customs here are scum. looking at another €100+ on top of what I paid.
post #1164 of 4784
which of these monitors is best to get? i don't care for speakers..and im not sure about this tempered glass thing.
Edited by malikq86 - 3/6/12 at 5:33am
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post #1165 of 4784
My tracking info start with EGXXXXXXX. Which website are you guys using to track it. my Tracking info was provided to me on sunday night would like to know where it is right now.
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post #1166 of 4784
Thanks to this thread and many thanks to everyone who has been posting with information - I received my QH270 IPSB (Tempered Glass) from Dreamseller a few days back. It arrived double bubble wrapped and the box had only a slight graze from shipping. Ordered on 2/27/12, it shipped 2/28/12 and it arrived 3/3/12.

The monitor works fine, and it looks absolutely amazing smile.gif First time using IPS - amazing. It was not a perfect panel however - there was one dead pixel in the upper left side, and a spec of dust (a tiny bit bigger than a dead pixel) trapped under the glass in the lower right hand side. I also noticed last night a very low humming noise from the monitor. Is the hum a bad indicator btw?

That being said - none of the flaws are really noticeable unless I'm actually looking for it or putting my head behind the monitor near it to hear the hum. Besides that (dusty room), specs of dust are almost always on my monitors unless I clean them every 15minutes tongue.gif

The flaws to me are very minor, so I'm very pleased with the monitor biggrin.gif In fact, I ordered another one last night.

I use a Radeon HD7950 (Sapphire OC Edition http://www.sapphiretech.com/presentation/product/?cid=1&gid=3&sgid=1157&pid=1450&psn=&lid=1&leg=0 ). It has one Dual Link DVI output (which I'm using for the Achieva monitor), one HDMI and two Mini Displayports. I'll need to convert one of the Mini Displayports to Dual Link DVI to use the 2nd Achieva when it arrives (should be here by friday or saturday, already recieved a tracking number this morning).

Now I have a question. Have any of you used any reliable Mini-display port to Dual Link DVI converters? They seem pricey (generally about $100), and most of the reviews I've read about them indicates issues ranging from "snowiness", stops working after a short period of time, having to replug the converters and/or restart the system to get it working again, etc.... Any help is appreciated, thank you.
post #1167 of 4784
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.

Thanks for posting. Looking forward to getting the monitor and putting your hard work to good use.
post #1168 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.

Same is for me, i paid on 24th Feb, dispatched on 27th. via local postal service (BUSANJIN), arrived at outward office of exchange (international post office) on 29th, dispatched via air carrier (INCHEON) on the same day and arrived at the custom office on 5th March. I guess i'll have it tomorrow.
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post #1169 of 4784
Quote:
Originally Posted by Tea1023 View Post

what country you in?
I'm waiting to get confirmation from someone in Europe, but preferably Ireland. if I get hit, it'll be hard. customs here are scum. looking at another €100+ on top of what I paid.

Dream seller is marking the package as gift with low value 100$, so even if you have to pay it will be only 21 $ / 16 EUR. I wouldn't be worried. In Belgium the customs are the same, they even call you to ask from where it is and what you have in the package.
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post #1170 of 4784
Quote:
Originally Posted by eduardmc View Post

My tracking info start with EGXXXXXXX. Which website are you guys using to track it. my Tracking info was provided to me on sunday night would like to know where it is right now.

I've asked dream-seller which tracking website to use and this is the answer I got:

"If you want to check the tracking info by yourself, please go to visit the following website.

http://trackitonline.ru

If you have any further question, please feel free to ask. We'll try our best to help you out as far as we can. Thanks in advance. Have a good day!"
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