[Metagroboliser]

Aaaarrrrgh!!! Rainbows everywhere!


You cannot imagine my anguish. I've had my Mits 52725 now for 4 days, and am completely in love with it! It is truly a stunning set ... especially in black level performance. However, starting day 3, I'm suddenly seeing rainbows everywhere ... not just peripheral vision flashes with rapid eye movement, but also on screen when white on black text (or any other high contrast image) splashes or moves, as is the case with most commercials, etc. (of course, I never saw any rainbows at the store before purchase)!


I am utterly crushed! So much so that I'm gonna keep the set for another week and try to desensitise myself and somehow have my eyes 'unlearn' the rainbow (yeah, I know ... denial)! In any case, the eventual outcome seems inevitable ... SONY RP, here I come. (any suggestions on a comparable model)?


I wonder if in the next couple of generations, DLP might become an option for me again? Is it the colour-wheel rotation speed or the segment count that is generally considered the culprit wrt rainbows? ... or is there no hope until true multi-chip sets become available?

 

[Dallas_Jose]

There are a small percentage of us who see rainbows continueously and there really is no way to avoid them. The rainbows don't exist people will not understand or offer useful help. Sorry consider crt or lcd at this time.

 

[Kid Red]

Yea, I'm disappointed i can't enjoy DLP either. I really like the new 44" LG. However, not really rainbows-I get headaches. Rainbows are one thing, but headahces after 10-20 minutes of viewing are different. I am tempted just to give a shot to see if after a few days they would subside. But have seen rainbows before, didn't think that might end up a problem even if the headaches go away.

 

[snatch]

Sony KDF-55WF655


Notice the WF and not the WE. The WF actually has improved picture quality whereas the WE is just a rehashed 610 with a tuner and all silver design.

 

[Artwood]

If you really see them I would get something else. If you don't really see them then just join the long large parade of forum manipulators.


If not DLP you can choose RP LCD or D-ILA with inferior blacks, Plasma that costs ou the wazoo or good old Cave Man RP CRT which gives the best picture in the dark than any of them. The Video Display Manufacturing companies will keep giving us these bad choices as long as we're dumb enough to buy them!

 

[dre]

Same exact thing happened to me.............started with a Mits 52725 then returned it for a Sony KDF-55WF655 due to headaches and rainbows after 1 week . Very happy now !!!

 

[Metagroboliser]

Quote:

Originally posted by Artwood ... If you don't really see them then just join the long large parade of forum manipulators. ...

If only it were so! Unfortunately, I do very much see them.


There is a point to be made here though: I've been thinking about how much my apriori concern (indeed from reading these forums) has contributed to my seeing the rainbows. Afterall, I didn't see any the first day and a half, and now I see them everywhere. In fact, it appears I didn't see any until I went looking for one by scrutinizing Avia test patterns. Since seeing the first however, matters have been getting progressively worse.


This argues that perhaps it is less a physiological and more a cognitive phenomenon ... ie, perhaps this is purely a sensitisation issue and, by implication, one should be able to desensitise oneself ('stop looking for rainbows to stop seeing them' ... as others have noted elsewhere). Has this issue been formally (or perhaps just seriously) investigated? For instance, is there a relationship between incidence and colourwheel rotation speeds and/or number of colour segments?


I intend to hold on to the set for a couple of more weeks and see if I can 'stop looking for them' and get a positive result. Lets hope for the best!

 

[Auditor55]

I was in similar situation as you, I purchased a Mits DLP, but do to rainbows and compromised black levels, I returned in favor a caveman, dim, burn-in worrying about, poor viewing angle having, too big and bulky Mits Diamond CRT RPTV. Now I can watch movies how the director intended for them to seen.

 

[Kid Red]

KDF-55 is sweet, and a good price. But too damn wide for my space and Sony didn't make a 50" version

 

[JeffZX9R]

Quote:

IS THIS A GREAT COUNTRY...OR WHAT !!!

You know dre, I just have to smile every time I read one of your posts.

Thanks


I'm in the rainbow camp too I'm afraid. Been waiting for the 60WF Sony. I do see the SDE a bit, but from all the comments I've read about the new sets, I think I'm gonna be real happy.

 

[JeffZX9R]

Quote:

I was in similar situation as you, I purchased a Mits DLP, but do to rainbows and compromised black levels, I returned in favor a caveman, dim, burn-in worrying about, poor viewing angle having, too big and bulky Mits Diamond CRT RPTV. Now I can watch movies how the director intended for them to seen.

I'll see that and raise you; crappy blacks, SDE, bad pixels, and expensive light bulbs.

 

[Steve S]

Quote:

Originally posted by Metagroboliser If only it were so! This argues that perhaps it is less a physiological and more a congnitive phenomenon ... ie, perhaps this is purely a sensitisation issue and, by implication, one should be able to desensitise oneself ('stop looking for rainbows to stop seeing them' ... as others have noted elsewhere). Has this issue been formally (or perhaps just seriously) investigated? For instance, is there a relationship between incidence and colourwheel rotation speeds and/or number of colour segments? I intend to hold on to the set for a couple of more weeks and see if I can 'stop looking for them' and get a positive result. Lets hope for the best!

A very interesting speculation indeed!


3 years ago I bought a crt based Sony widescreen rptv, model KP57HW40.

I got it to replace an Hitachi I'd had for 3 weeks and hated for a variety of reasons.


For the first few weeks I was happy as a clam with the set.


Then I read a thread over at another forum about ghosting issues with that model set. Thin semitransparent lines just to the right of dark images on light backgrounds, most apparent at the transition line between a 4/3 image and the gray bar on that side. Lo and behold I started seeing it on my own set, more and more to the point of obsession. No amount of tweaking could eliminate this plague! Sometimes there were actually multiple ghost lines!! Then I started going to stores and seeing it on virtually every set of every type on display, regardless of sharpness setting. I even started seeing it in real life, next to telephone poles silhouetted against the blue sky!


Then I read all the other complaints on all the other brands in that same forum, dealing with pq problems and outright failures much worse than mine, and figured I had the least objectionable defect around and overall the best pq for the money at that time.


Within another couple of months the ghosting disappeared. I don't know if it's really gone or I just "trained" myself not to see it but I haven't noticed it in a couple of years now and don't plan to consciously look for it.


I'm not saying you could actually train yourself not to see the rainbows.

I had green flashes on an rptv once whenever I abruptly moved my head when not concentrating on the screen, such as when eating dinner in front of the set, and they never went away. I've read that the rainbows on dlps may be provoked by the same conditions.


If the rainbows don't go away before your exchange period runs out, definitely exchange the set.

 

[Artwood]

You can't untrain yourself to not see rainbows--it's like viewing letters--invariably they will form words.


What you can do is learn another language. I don't know German. The words are meaningless to me. If I learn German then when I view the letters my mind will form words that do have meanings.


If you want to learn a different language than DLP it'll have to be another technology. If it has far fewer "words" than your current language your problems with rainbows may be gone, but you'll have other problems which will result in the Picture being bad because of a lack of words.


Remember choosing a different technology like learning a new language is a choice! Staying with the problems of the old language or technology is a choice, too! You can't ever unlearn a language or a technology but you can choose NOT TO USE IT!


Moral of the story: some things you don't have control over, but other things you do. Responses can be controlled by using other languages or thought processes. This extends to many other spheres of life. The discerning individual who reads this will see the picture. The undiscerning individual will be content to let his physiological reponses always dictate his mental processes. Such people with DLP rainbow problems will be content with the inferior language of Rear Projection LCD or D-ILA instead of the more advanced though cumbersome and frought with problems of their own superior languages of Rear Projection CRT or Plasma. I wonder if Bush or Kerry would know what I'm talking about!

 

[rsg_1]

My advice is that if you're seeing rainbows and getting headaches from DLP displays, then there is only one solution for you: Quit masturbating to high definition porn, otherwise you'll go blind.

 

[JimP]

Metagroboliser


What I find odd is that it took 3 days before you could see it.


Any chance that you're watching it in a totally dark room? Did you start seeing it after making brightness adjustments?

 

[Kipp Jones]

Are rainbows a genetic flaw???

 

[Playdrv4me]

LOL, This reminds me of the "floaters" debate we discuss on one of the health forums I visit. Some people have them and dont notice them, some people dont have them at all (they are actually bits of vitreous jelly that floats around in the eyeball). But for those who have them and START noticing them, they are a never ending torment in your sight. When you look at a strong light source, they are like little worms floating in your field of vision, but some HAVE successfully trained themselves out of noticing them over time.

 

[aircasper]

Quote:

Originally posted by Playdrv4me LOL, This reminds me of the "floaters" debate we discuss on one of the health forums I visit. Some people have them and dont notice them, some people dont have them at all (they are actually bits of vitreous jelly that floats around in the eyeball). But for those who have them and START noticing them, they are a never ending torment in your sight. When you look at a strong light source, they are like little worms floating in your field of vision, but some HAVE successfully trained themselves out of noticing them over time.

great, now you have me staring at my "floater" as i type this!!!!

 

[snatch]

I do speak German and I don't see rainbows. Life is grand.