asimpod

Hi, Yes, the report is a 5x5-grid sample of the screen, 25 seperate measurments. Regarding deltaE, the max and average numbers are given for each grid. A recommended tolerance 'pass' is given to a grid with less than 2 max dE; a nominal tolerance 'pass' for less 3.9 max dE and a 'fail' for 4 or over max dE (i think). So for example, for ISO 14861:2015, the centre 9 grids have nominal or recommended passes, with the greatest deviation being -10% luminance, max dE 2.8, avg dE 2.4. So i wonder if these centre 9 grids, based on the numbers, are effectively a good-enough standard for colour accuracy...? -If so, i can adapt my work-practice and view the image within this centre-space when fine-tuning. I guess i'm hoping that someone can give me their opinion based on what these numbers are saying. I filled the screen with L*50 grey as suggested... obvious bleed-light from the edges, a magenta-ish tint in some corners... i feel i could work with it -however, i don't know any better, this is my first screen which hasn't been a laptop-screen. Regarding the link -assessing the screen by raising luminosity 1% at a time- what result should i expect /accept for my needs? -a change at 5% (but not at 1-4%) is OK? Thanks for getting back to me :) Regards.

Hello, I've recently bought a monitor, Dell U2413 (yes, it's old :) and am currently trying to evaluate if it's worth keeping, based on the panel uniformity. I've profiled and calibrated the monitor with i1Display Pro and DisplayCAL (unable to hardware calibrate the monitor using DUCCS, dCAL has proven to be better than DUCCS at software-only calibration), the gamut measurments of 98% AdobeRGB, 99.9% sRGB are good enough for me. * What i don't really understand is the panel uniformity-report: I am wondering, is it "good enough" to work with, or am i looking at a sub-standard panel, unsuitable for photography-editing? * I'm using the monitor to produce my own images for print: pigment inkjet, c-41. Below is the uniformity-report expressed as ISO 14861:2015: This is the uniformity-report expressed as Avg Luminance & deltaC: I have a vague understanding of what the report means. Obviously it's not fantastic. I'm unsure whether to return it or not because it seems to be on the border-line of what i understand to be acceptable... ...is the centre (9 grids) of the screen good enough to work with? ...i can see in ISO14861 the screen completely fails in the bottom-row, however the rest of the panel acheives at least a nominal tolerance -is this nominal tolerance good enough to work with if producing images destined for print? ...is over 10% luminosity difference simply not good enough? So, i'd like to know, from anyone who edits images for print, in your technical or experience-based opinion: (i) Does the screen uniformity pass a minimum standard for photo-editing work? (ii) Would you keep the screen if you had no other AdobeRGB option? (iii) Is this an expected /accepted uniformity report from *this (price-range of) monitor? If you had bought this *new*, would you deem the panel acceptable, or would you send it back? Where i'm coming from is, i'd like to work in 98%+ AdobeRGB and this is the only monitor i can get for the forseeable future which acheives that. It's age, lack of hardware calibration (DUCCS won't work on this Mac OS) is not an issue for me. I'd like to keep it, but not if the panel uniformity is going to be counter-productive to me learning how to produce prints from my images. I'd be using -and learning- on the screen for probably a year. Perhaps there's only one question here, not three. Yes /No reply(ies) to these questions is fine, longer replies welcomed -all appreciated. With thanks, Asim :)