Ive had my HD65 for over two years, and its has had to be returned to Optoma for warranty repair due to a failed cooling fan on two separate occassions. Yesterday, the bulb exploded.
In the meantime, I pulled out my old H30 as a backup whilst I await my new HD65 lamp to arrive.
WOW, this thing blows my HD65 out of the water in terms of light output, contrast and colour - and this is despite its bulb being passed its life expectancy! Even when brand new, my HD65 didnt even come close to the image this old projector puts out, I cant believe it...
When I intially upgraded from my H30 to the HD65, I recall being clearly disheartened with the reduced contrast and colour reproduction but having put the H30 back into service its all coming back just how much better the H30s output is, notwithstanding the limited resolution of course.
The one thing that stuck with me with the HD65 was the terrible discolouration I seen when enabling brilliant colour, or even pushing the contrast up to higher setting. With each step increase in these settings, the whites would have distinct change in hue, from a pink tint, through to green.
My final calibration settings ended up having to have both brightness, contrast, brilliant colour all set to 0 but this still resulted in colour crush, with shades still blending. I found a great test for this via the following test screen, and I would really like to hear how this looks on your HD65:http://www.lagom.nl/lcd-test/contrast.php
I found that my HD65 would not resolve all of the individual steps in the colour bars until I had set the RGB gain to the following setting:
Having to reduce these values so much resulted in an already dull image to be further dimmed. I tried different inputs (VGA, Component, HDMI etc.) and different video sources and found no difference. My own theory is that the RGBRGB colour wheel in the H30 is far better suited to reproducing strong vibrant colours, and the RGBCYM wheel in the HD65 only seems to help reduce temporal dithering artifacts in dark greys and greens, but at the expense of overall colour reproduction. Either that, or the brilliantcolour implementation is bad.
Has anyone else experienced such colour problems on the HD65? I would like to hear your results on the colour contrast test linked above to see if your HD65 is crushing the colours. I would also like you to test changing contrast and brilliantcolour levels whilst observing if and how your white colour is tinted with a pink or green hue.
Im now considering looking at an alternative DLP with an RGBRGB colour wheel. Would anyone have any suggestions for such a PJ that had a similar offset to the HD65?
Please also try your HD65 in this gradient (banding) test... on my projector there are clear areas which band heavily and have green and pink shades amongst the greys.http://www.lagom.nl/lcd-test/gradient.php
Again, I would appreciate your feedback on how this looks on your HD65.