momor | Je comprends. Gros dilemme en effet, mais bon c'est d'abord un outil de travail, faut que je me résigne. Ce que je n'arrive pas à déterminer est si qualitativement le HP ZR24w est meilleur que le Dell U2311H. Le HP étant plus récent, le comparatif n'est pas si évident. On parlait d'une erreur d'angle ou plutôt de réduction pour le Dell et pourtant encensé partout, meilleurs que le Nec pour tout ce qui est imagerie. Alors au final, c'est difficile de choisir entre Nec, Dell et HP, même s'il y a quand même aussi le choix du format. Je me dis que ça fatigue plus les yeux d'être en format 12/9 non ? J'ai lu tout le topic concernant ce HP mais on en parle pas tant en détail et pas du tout comparativement.
En résumé on a et en cherchant bien sur internet, à date d'aujourd'hui on a ça comme prix et options (j'inclus le prix de livraison dans les sommes suivantes)
pour les mêmes options d'écran (dalle IPS + pied réglable et pas de HDMI) :
240 EUR - 23" - Format 16/9 - Dell U2311H - e-IPS
331 EUR - 23" - Format 16/9 - Nec MultiSync EA231wmi - e-IPS
210 EUR - 24" - Format 16/9 - BL2400PT - VA - LED
350 EUR - 24'' - Format 16/10 - HP ZR24w - S-IPS - standard gamut screen
EDIT :
Ceci sans compter le BenQ 24 pouces en dalle VA + LED BL2400PT à venir en France mais déjà disponible sur internet à 296 euro
Amazone : http://www.amazon.fr/dp/B0042IN8GY [...] nkCode=asn
et le successeur du Nec pour janvier 2011 - Nec MultiSync EA232wmi
gros dilemme cornélien étant donné que chacun de ces écran à un gros défaut et un gros avantage
LE NEC
Une dalle e-IPS
Moins bons noirs
Econome
Spec: http://www.necdisplay.com/Products [...] fa8204f2a0
Articles :
http://www.tftcentral.co.uk/reviews/nec_ea231wmi.htm
http://www.prad.de/new/monitore/te [...] mi-bk.html
http://www.flatpanelshd.com/review [...] 1265977876
http://www.lesnumeriques.com/article-240-7760-52.html
Citation :
The NEC MultiSync EA231WMi is a very good monitor for people who need high color accuracy, who do not like the narrow viewing angles of popular TN-based monitors, but who cannot afford a monitor with an S-IPS matrix.
Compared to S-IPS, the single notable difference of the e-IPS matrix installed in the EA231WMi is in the viewing angles: when viewed sideways, the image on the e-IPS matrix loses its contrast, getting whitish. However, this effect is no stronger than with TN and PVA matrixes and is not accompanied with a tonal shift typical of these two matrix types. Besides, the vertical viewing angles are narrower than the horizontal ones with TN matrixes whereas they are equal with e-IPS.
Although I did not see this with the few samples I’ve checked out myself, I must warn you that some users have complained about color temperature irregularities of their EA231WMi: when displaying a gray background, the corners of the screen would be greenish or pinkish. Be careful and check your monitor out for this defect. It should be perfectly visible even in the tumult of a computer shop if you fill the screen with gray.
Overall, there is only one serious and uncorrectable flaw I can find with the MultiSync EA231WMi. I mean its rather high response time, of course. But if this parameter is unimportant for you, the EA231WMi will make an excellent all-purpose monitor for home and work, including image-processing applications. It is going to be a real gift for many amateur photographers as an optimal alternative to expensive S-IPS and to cheap but not very color-accurate TN matrixes.
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DELL
Site officiel : http://accessories.euro.dell.com/s [...] sku=421259
Review : http://www.tftcentral.co.uk/reviews/dell_u2311h.htm
articles experts : http://alatest.fr/avis-de-experts/ [...] ,29/?all=1
Article: http://www.lesnumeriques.com/dell- [...] 30_88.html
Meilleurs noirs et meilleurs contrastes mais problèmes d'angles
Citation :
En contrepartie, on note un rétrécissement des angles de vision. Pour chiffrer un peu tout ça nous avons mesuré une baisse de la luminosité de 30% à 45° sur le côté contre seulement 15% sur le 2209WA, lui aussi en dalle IPS. Les choses s'aggravent sur l'axe vertical. En effet, toujours à 45°, si le 2209WA ne varie que de 20 %, le U2311H dépasse les 60%. (Nuimériques)
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Citation :
All in all I was very impressed with the U2311H. Despite it's extremely competitive price, Dell haven't really held back in features like they do on some of their more 'budget' models. There's still a decent range of ergonomic adjustments and interface options which is pleasing to see. Colour accuracy, black depth and contrast ratio are all very strong, and in fact the U2311H offers some of the best performance we have seen from any monitor in these regards. It was good to see Dell applying an RTC impulse to help boost response times compared with the NEC EA231WMi, and with input lag being very low you could easily use this screen for gaming.
The screen doesn't really have many weaknesses either. If I'm picky, then the ergonomic adjustments for pivot and rotate were a bit too stiff, and Dell have cut corners slightly with the loss of the touch sensitive OSD buttons and a couple of missing features. It would have perhaps been nice to see an HDMI interface and maybe even a card reader like there is on the U2410, but there's a big price difference which more than makes up for it. Luminance uniformity was fairly poor, but results may of course vary. It was at least good to see no obvious backlight leakage like we saw on the NEC equivalent which I think would pose more of an issue than luminance variations. As I've said, response time and input lag are both very good, making this a good potential gaming screen. However, oddly the hardware aspect ratio controls didn't feature a 1:1 or "aspect" mode which might have been useful to some.
This size range is becoming increasingly competitive with a lot of new and exciting IPS models emerging offering some very good all round performance. As long as you don't mind a slightly smaller screen (23" as opposed to 24" ) and a 16:9 aspect ratio, the Dell U2311H is an amazing price and would be an excellent option to consider.
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HP
Officiel : http://h10010.www1.hp.com/wwpc/fr/ [...] 01131.html
Review : http://www.tftcentral.co.uk/reviews/hp_zr24w.htm
Citation :
Overall I thought the HP ZR24W was a very good screen. It lacks some of the more fancy and advanced features of some of its competitors (e.g. 10-bit internal processing, 3D LUT's) but it certainly makes up for that in its reduced price! Obviously those features have their place in the market, and advanced professional models like the NEC 2490WUXi and NEC PA241W have a lot to offer. Remember, though, this is a mainstream model aimed at the masses and in this regard it does very well I think.
The performance of the screen was very good in nearly all regards. Colour accuracy was excellent, and even offered very good performance out of the box which is going to be important for people looking for a screen in this price range, who don't want to fork out for a colorimeter. Sure, there weren't as many presets, options of added extras to play with, but this area of the market surely isn't really for people who need them anyway. Response time and input lag were very good, and there were no issues with viewing angles or uniformity.
Perhaps the only real problem initially was the poor black depths and contrast ratio. Through our testing we have managed to find a way to achieve better results through alteration of the contrast control. However unless you have ways to correctly calibrate the screen you could sacrifice gamma, detail in dark images and suffer from some wash-out of the image. HP seem to have opted for a default 80% contrast setting from the screen, which does return spot on gamma and a good image quality. However, this setting does not return the blacks and contrast ratio you would hope for from a modern panel. You can improve it, but calibration would have to be carried out to correct the side effects. Since most average users won't have access to colorimeters, this could still be seen as a draw back of the screen certainly.
Price-wise, the HP is very attractive. At the time of writing, the screen retails for ~£330, with competing models like the Dell U2410 and HP LP2475W retailing for around £450. This is a big price difference and apart from a few extra features and a wide gamut, there isn't really a lot in it I don't think. You've also got to keep in mind that this is a standard gamut screen, which I think it going to be one of the key differentiaters between this and the other models we have discussed. If you want an sRGB gamut screen and do not want extended colour spaces, this would be an excellent choice, especially given the price point. Of course, if you want extended colour spaces then the Dell U2410 and HP LP2475W would be a better option in this area of the market.
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Citation :
Good:
Excellent colour accuracy once calibrated, very good at default settings as well
Very attractive price point in this sector
Good responsiveness and very low input lag
Bad :
Poor black depth and contrast ratio at default contrast setting. Can be corrected, but will sacrifice gamma and shadow detail unless combined with proper calibration.
Very few extra features (e.g. presets, internal processing etc)
Ergonomically very good, but a little stiff to manoeuvre (I'm nit-picking!)
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ce qui veut dire que pour moins de 350 EUR on a ces choix :
(je ne mets pas le Samsung F2380M dans la course car plus orientés jeux ou parce que le Samsung a fait l'objet d'une discussion intense qui a achevé de me convaincre de ne pas l'acheter et c'est là : http://www.lesnumeriques.com/legra [...] 8140_1.htm, ni le Viewsonic car plus orienté gamer)
240 EUR - 23" - Format 16/9 - Dell U2311H - e-IPS
331 EUR - 23" - Format 16/9 - Nec MultiSync EA231wmi - e-IPS
210 EUR - 24" - Format 16/9 - BL2400PT - VA - LED
350 EUR - 24'' - Format 16/10 - HP ZR24w - S-IPS - standard gamut screen
Message édité par momor le 19-11-2010 à 03:29:24
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