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Messages - NCX

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1
Support NCX, About NCX & Site Update Log / Re: Site Update Log
« on: February 19, 2019, 07:04:16 pm »
BenQ PD2700U

Added the Review by Playwares and the Review by Tom's Hardware to my Best Reviewed Flicker Free 27" 4-5K AHVA/IPS/PLS buying guide.

Very accurate matte 3840x2160 AH-IPS in a fake frame-less casing with a fully adjustable stand, Displayport, mini-Displayport, HDMI 2.0, 4x USB 3.0 Downstream, 2x USB 3.0 Upstream and a 3.5mm Audio Out.  It has an HDR emulation mode, but lacks a wide gamut panel required to properly support HDR.


Dell U2719DC

Review by Alexander Grain (=DEAD=) to my Best Reviewed Flicker Free 27" 1440p AHVA/IPS/PLS buying guide.

Fully adjustable, matte, 2560x1440 IPS with Displayport In & Out (for Daisy Chaining), HDMI, 4x USB 3.0, USB-C, 3.5mm Audio OUt and accurate out-of-the-box color accuracy in the default Standard mode.


Philips 328P6VUBREB

Added the Review by Trusted Reviews to my Best Reviewed Flicker Free 32" 4K AHVA/IPS/PLS buying guide.

Matte 4K VA panel with wide gamut HDR panel, HDR 600 certification, very accurate color presets, a high quality sRGB mode which does not under-saturate colors and high (28ms) input lag.  It has a matte black bezel (superior to glossy black but still decreases the perceived black depth compared grey bezels), a fully adjustable stand, Displayport, 2x HDMI 2.0, USB-C, 3.5mm Audio Out, 4x USB 3.0 and RJ-45 Ethernet power port.


Viewsonic VP2768-4k

Added the Review by PC Magazine to my Best Reviewed Flicker Free 27" 4-5K AHVA/IPS/PLS buying guide.

Fully adjustable and very accurate matte 4K IPS panel with hardware calibration.  It has Displayport, 2x HDMI 2.0, 4x USB 3.0 and a 3.5mm Audio Out.  Set the Response Time to Ultra Fast for the best overdrive performance with fast pixel response times and negligible overshoot ghosting.

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buonasera NCX scrivo dalla italia volevo un consiglio  su quale di questi monitor acquistare   Viewsonic VX2458 -Iiyama Prolite XUB2492HSU-B1  -Philips 246E7QDSW - AOC 24V2Q - Philips 245C7QJSB

The English language is used on this site since it is the only one I understand.  I used a translator to hopefully understand what you are asking, which is what to buy out of the four monitors listed, which is a question I can't easily answer since the Viewsonic uses a 144hz TN panel while the other three use 60-75hz IPS panels. 

You're going to have to decide if viewing angles and image quality is worth sacrificing to acquire 144hz from the iiyama which uses a TN panel.  I would buy the AOC since it natively supports 75hz, but make sure the gamma to mode 2.

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Support NCX, About NCX & Site Update Log / Re: Site Update Log
« on: February 14, 2019, 04:22:48 pm »
Asus VG279Q

Added the Measurements by Belgium Hardware to my Best Reviewed Flicker Free 27" 1080p IPS/PLS Monitors and Best Reviewed Flicker Free 144hz 1080p Monitors buying guides.

Fully adjust-able matte 1920x1080 144hz AUO AHVA panel with AMD Free-Sync (48-144hz), Displayport, Dual-Link DVI (120hz), HDMI, 3.5mm Audio In & Out.  The Asus can fully covers, as well as slightly over-saturates colors of the HDTV/REC 709 and sRGB (SDR) color spaces, and has accurate color presets overall (default=Game Visual MOBA), which can be marginally improved by setting the Low Blue Light Filter to Level 1.  As expected, the Asus has very fast pixel response times with minimal overshoot, even when using the default overdrive (Trace Free 60) setting, and has negligible input lag (4-5ms measured by Playwares with the SMT Tool 2.0 vs a CRT).

Eizo CG279X

Added the Review by PRAD to my Best Reviewed Flicker Free 27" 1440p AHVA/IPS/PLS buying guide.

Matte, fully wide gamut and fully adjustable 2560x1440 resolution LG AH-IPS panel with a built in colorimeter, Displayport, Dual-Link DVI, HDMI, USB-C, 2x USB 2.0 (back), 2x USB 3.0 (side) and a 16 bit 3D LUT.  The Eizo has very accurate color presets aside from the DCI-P3 mode which has very high, 2.6 preset gamma which causes black crush, but it is important to note that the point of monitors like the CG279X is to be hardware calibrated with an accurate colorimeter, and used for work with programs which support color management.  The Eizo has slow pixel response times, but fairly low input lag (9ms) for a professional display.


Philips 276E8VJSB

Added the Review by PC Lab PL to my Best Reviewed Flicker Free 27" 4-5K AHVA/IPS/PLS buying guide.

The Philips uses a very accurate 4K fake bezel or frame-less LG AH-IPS panel with Displayport, 2x HDMI 2.0 and a 3.5mm Audio Out jack.

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Conclusion

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Settings & ICC Profile

DSC_0634 by Dr NCX, on Flickr

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Xbox 360 & Xbox One

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Playstation 3 & 4

DSC_0687 by Dr NCX, on Flickr

8
Perceived Black Depth

9
Viewing Angles & AH-IPS Glow

HP 25f VA 3 by Dr NCX, on Flickr

HP 25f VA 1 by Dr NCX, on Flickr

The 25f offers the same viewing angles as its predecessors, and most other budget 1080p IPS/PLS.  The viewing angles are only a problem if the monitor is set to low, or looked down at or viewed from above like so:

Spoiler (hover to show)

The top of AHVA/IPS/PLS panels need to line up or be higher than the viewers eyes to eliminate glow. The top left image shows the correct way to view an AHVA/IPS/PLS panel. and is also ideal for keeping proper posture and not hunching:

Spoiler (hover to show)

AH-IPS Glow

HP 25f VA 2 by Dr NCX, on Flickr

The top of AHVA/IPS/PLS panels need to line up or be higher than the viewers eyes to eliminate glow. The top left image shows the correct way to view an AHVA/IPS/PLS panel. and is also ideal for keeping proper posture and not hunching:

Spoiler (hover to show)

Glow is not a problem unless trying to look down at, or view the monitor from above, which is the incorrect way to view an AHVA/IPS/PLS panel.  The 25f suffers from the same amount of glow as its 2015 and 2016 predecessors from HP, and slightly more glow than the higher end HP 24 Envy from 2017.  If set at the correct height glow is not a problem when leaning back or off angle to the left or right.

10
Monitor Reviews by NCX / Not Worthy Of A Spot On The Shelf
« on: February 13, 2019, 04:14:15 pm »
Calibrated Image Quality

DSC_0670 by Dr NCX, on Flickr

HP 25f Calibrated by Dr NCX, on Flickr

After calibration with dispcalgui and my Spectralcal C6 HDR 2000 colorimeter the HP 25f improves significantly, however it is again important to note that it is not possible to use both Free-Sync and custom color settings, that the 25f is significantly less accurate than its predecessors the 25er and 25es when calibrated, and that neither of these monitors support AMD free-Sync and 75hz like the 25f.  The 25f can only cover 91.7% of the sRGB color space when calibrated versus the 25er and 25es's 98.2%, and the 25f has nearly 300:1 less contrast when calibrated, and very obvious back-light bleed.  The calibrated image quality offered by the 25f is mediocre and on par with budget panels from half a decade ago while the 25er and 25es were very impressive for their price and year of release.  The 25f does not look bad, but it does not compete with significantly more expensive panels like its predecessors and the 24 Envy accuracy wise.  On a positive not, since the 25f uses the same almost-glossy or low haze coating it is still able to provide that nice glossy clarity, shiny sheen and enhanced vibrancy compared to a matte coating.

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Un-Calibrated vs Calibrated

In this post the Free-Sync mode, which in my opinion is the mode important preset-mode, is compared to my calibration which does not apply to the Free-Sync mode which must be selected to activate Free-Sync with the Xbox One and Xbox One X.

HP 25f Free-Sync Preset vs Calibrated 1
Spoiler (hover to show)

The preset green dominance is quite apparent in this comparison which contains many grey shades.  The grey dominance may seem gross, but it is quite normal for affordable monitors up to 600$ US.
 
HP 25f Free-Sync Preset vs Calibrated 2
Spoiler (hover to show)


HP 25f Free-Sync Preset vs Calibrated 3
Spoiler (hover to show)


HP 25f Free-Sync Preset vs Calibrated 4
Spoiler (hover to show)

The preset green dominance is quite apparent in this comparison which contains many grey shades.  The grey dominance may seem gross, but it is quite normal for affordable monitors up to 600$ US.

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Monitor Reviews by NCX / In Need Of A Mechanic
« on: February 13, 2019, 04:11:26 pm »
Preset Color Accuracy

DSC_0629 by Dr NCX, on Flickr

HP 25f Preset Chart by Dr NCX, on Flickr

Just like the HP 25er and 25es I tested in 2016 the 25f is Preset to the Neutral mode in the Color Control menu, which has locked color controls which prevent one from being able to edit the Red, Green and Blue color controls.  To activate Free-Sync with compatible devices (compatible graphics cards from AMD and Nvidia and the Xbox One X) the 24 Envy (tested in 2017) and 25f both need to be set to the Free-Sync mode to activate Free-Sync; the setting is located in the Viewing Modes Sub menu in the Color Control menu.  The HP 25f suffers from a light purple tint in the Neutral mode or out-of-the-box, and suffers from a light preset green tint when set to the Free-Sync mode, but the 25f does not need to have its contrast setting reduced from 80 to 75 like the HP 27CW, 25 & 27XW, and 25er and 25es I tested in 2015 and 2016.

The Free-Sync mode offers fairly accurate colors for a budget display, but editing the color controls makes the 24 envy and 25f switch to the Custom Color mode which de-activates Free-Sync.  The 25f is also significantly less accurate than its 2016 predecessors the 25er and 25es, but they don't support Free-Sync or 75hz natively like the 25f and 24 Envy do.  The 25er and 25es suffered from less of a preset green dominance, provided better gamma tracking (target=HDTV/REC 709 linear 2.2 standard) while the 24 Envy provided nearly complete HDTV/REC 709 and sRGB color space coverage, but slightly too gamma (2.42 average) which causes slight black crush or color and shade darkening.  Aside from the contrast issue mentioned the HP 25er and 25es provide significantly better preset color accuracy than the 25f, which like the er and es, can not fully cover the HDTV/REC 709 or sRGB color space since they can not display all blue and green shades properly, and over-saturate greens, reds and yellows.  The 24 Envy also can not fully cover the HDTV/REC 709 and sRGB color space, but barely falls short of doing so, and does not over-saturate colors. 

Overall the 25f can be considered to have good, but not great or excellent preset color accuracy, however this is to be expected for a budget 1080p IPS/PLS, and HP added AMD Free-Sync and 75hz support as well as fixed the preset contrast issue the previous two generations of panels suffered from.  The 25f is fairly accurate and vibrant, and does only looks slightly worse than a high end, professionally oriented and calibrated monitor like my Viewsonic VP2780-4K, which is a compliment when considered the price differences.

HCFR Grey Scale
Spoiler (hover to show)

HCFR Gamma
Spoiler (hover to show)

HCFR RGB Levels
Spoiler (hover to show)

HCFR RGB Color Temperature
Spoiler (hover to show)

HCFR CIE Diagram
Spoiler (hover to show)

13
Monitor Reviews by NCX / Speed: 75hz
« on: February 13, 2019, 04:10:53 pm »
Input Lag

DSC_0671 by Dr NCX, on Flickr

The HP 25f, 24 Envy and 25" & 27" CW/er/es/XW monitors can all be considered delay free (<3ms top screen Leo Bodnar measurement), but this is not surprising since most 1080p monitors are. Usually only multi-input 1440p-4k monitors have a around a frame (16.7ms) or two (33.33ms) of input lag. The Leo Bodnar device measures 9.8ms in the middle of the screen, but the Bodnar device has a built in delay and partially includes the monitors black-to-white pixel response times. Top screen Bodnar results are in the 3ms range, and both monitors tie with my CRT when using the SMT Tool. The actual signal delay (input lag without including the pixel response times) is likely less than a millisecond, but an oscilloscope is required to obtain the "true" value.

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Monitor Reviews by NCX / Become A Great Fireteam Shooter
« on: February 13, 2019, 04:10:23 pm »
Ghosting/Overdrive Perfomrance

DSC_0693 by Dr NCX, on Flickr

15
Almost-Glossy/Low Haze Coating

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