I have both rMini and Air.
The rMini (DLXL) doesnt have any image retention, but the Air (DMPLT) has image retention.
The Air also have uneven brightness with left side being darker.
And the color looks more saturated on the Air, which some reviewers say the color gamut is better on the Air than rMini. But when I compare rMini with my Iphone 4s, the color saturation is identical.
Tough to say---I've got the rMini, also DLXL, also no IR. I've also got the Air, but it's DMPLL (not T @ the end). I've read these can signify the display manufacturer, place of manufacture, or even 'date' of. Hard to pin point exactly what each and every letter means....as in year's past, it's been the display obviously....but who knows if Apple's changed anything.
Neither of mine show any IR at all----NOT that I've done the test, and in a way...those types of tests are ridiculous IMO, as it's not something you'll be doing in 'real life'---unless, of course, you're into checkers, chess or backgammon
--- That said, I'm definitely
not denying the existence of IR on the iPads...I've got two rMBPs, one had to to be changed out three months after owning it...as IR was evident after 30 seconds in Chrome to grab an icon, image, or sound file---back to Audition, Photoshop or Premier with their Gray background...it was almost immediate persistence and wasn't tolerable so I know the feeling.
That said...my iPads, I've owned each iteration (we've got a business we use them for as well as a large family and I'm Dad---so I get the 'new' one, Mom gets the latest 'Mini' and this works out), never EVER seen IR. I ran the test on our iPad 2 (purchased launch day and used every day since as my wife's GoTo tablet....she wasn't interested in the 3 or 4/or rather 'setting up' a new iPad, as I don't think she quite understands yet how the cloud works...that it actually works...and there's really nothing to do but 'wait' while it's doing its thing and putting everything back where it belongs---lol, I got her the rMini for Christmas, set it up (mirroring her iPad 2 32GB/WiFi...the Mini is a 128GB/LTE model as she LOVES music, her pics and videos she's shooting with her 5s)....and I've played with it the last couple nights. Low light, bright light, ambient light, doesn't matter. No bleed. No bad pixels. No IR. No crashes, reloads of tabs, etc. IN fact, I've got a pic I'll post with the system monitor showing Chrome, Safari, Mail, a game or two....all running at the same time, and the RAM it's using. I'm extremely impressed with the Air/Mini design form factor....and the speed, it's absolutely incredible....the LTE, in my market is fast as hell, anywhere between 15-45MB/s down (typically, at my house and studio, I'm @ 35 down and 30 up), 20-30MB/s up. So even if a tab must be 're loaded' in Safari, it's nearly instantaneous. That said, I use iCab as my browser of choice. I've not had nearly the problems so many have described around MR. Mine...both, are home runs!!! Favorite of the bunch, for sure.
I wouldn't be so concerned. Go back (if you'd like one) and buy another. Millions are being produced. 100s, if not a few thousand will have 'issues'. It's a percentage thing and probably next to impossible to run EVERY iPad through a display battle test before it's packaged. Maybe I've been lucky....but I don't think so...I think those, and really, there are very VERY few, that get 'bad' displays, etc. Their here, on the board...letting all of us know with their AirHorn how bad their experience has been. I believe bad Apples exist, for sure. I've had one (of probably 3 dozen Apple products over the years....maybe a hard drive or optical drive needs servicing....but no display, CPU, RAM or 'hard to fix' challenges.
As far as your color issues...again, I think you just plain got a bad one. The Air's display is second in line (by a single point) on the big display review site to the new Kindle HDX....and bests all other tablets. It's been that way for some time....the iPhones too. IMO, the Air is as good as my Eizo CG Color edge and NEC 30" Widescreen SpectraViewII which nails 99.3% of Adobe RGB color space...it's. that. good. Detailed and objective analysis confirms my subjective opinion as well. Check out Displaymate or Anand for their reviews.
Ya got a bad Apple bud, don't be shy----and stay away from the forums for a bit. This place is BAD News after the purchase of a new toy!!! Fantastic for answers and help....but the critical nature of some folks will inevitably find a flaw in literally ANYthing!!!
As a video geek myself, and as an Audio/Video production company owner, I can honestly say 10 years ago, I was exactly the SAME!!! Spent WAAAAY too much time at AVScience and tweaking, calibration....sound/video---hues and tints and on and on and on....it gets old after a while. A bad display is a bad display...period. That said, it's definitely NOT common. If it was, the possibly 20-25,000,000 sold by now (Air and rMini) since release, we'd have seen a BIG write up in the NYTimes about this anomaly that's affecting 10,20, 50% of Apple's new iPad!!! Bad tint, uneven tint, bad pixels, screen bleed and IR....all things NONE of us want to deal with on a piece of gear that is essentially....a display, and nothing else!
Again, if you don't notice in every day usage, you won't EVER notice it. Like I said, for Sh's and Grins, I ran the test on the now almost three year old iPad 2. IR----yep, minor...and gone in 20-30 seconds, it didn't persist and I left it on the pattern for 12 minutes. 100% brightness. We've NEVER noticed it in real life and they're often used (we've got a pair of 2s and three iPad 4s for the business) in our Alesis docks while performing and recording ceremony audio (music played, official, the vows, et al)----waiting for Alesis to drop a Lightning dock and we'll be set. They're $200, XLR in/out, ¼" I/O, RCA/Digital Toslink, Headphone, Gain---Mic inputs, it's a helluva change from 20 years ago when I was hauling 80 pound record crates (a dozen of them), 35 pound Tech 12s, 300 pound amp racks and 400 pound subs around
. These days, an iPad, Alesis, and Fender Passport 500---folks into a suitcase and with all three, I'm less than 50 pounds and set up in 5 minutes. Mics....well, placement takes a little time but as far as revolutionary, for ME and MY business...the iPad is a game changer, just like bigger hard drives 10 years ago---and iTunes/Music Management programs....and good, high quality FLAC, ALC or WAV rips. Almost. Lossless---and storage is cheap.
Damn...didn't mean to go on like that! I'm sorry!!! That said, don't be gun shy. That can't limit you to a single return. Go back---buy another, if it's f'ed, bring it back---or call 1-800-MYAPPLE. IMO, their post purchase support is absolutely second to NONE!
I don't understand why they said you can exchange it only one... If the second one is defective, you are supposed to keep it ??
Agreed....as I just mentioned, that's not their 'right'. As stated in their return policy....however, if you've been the 'guy' that's returned a half dozen iPads each time they come out---iPhones, same thing---they may have you 'marked', not sure. You don't sound like 'that guy' though. I'd try a do-over. These iPads are BAD ASS!
