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Discussion Starter · #1 ·
i own a maranz vp 12 and found when i look skew into the optics that most of the surfaces inside have dust on.

i saw this also on other projektors with the 1280X720 ti chip.


THIS WILL BE DECREASE EXTREMELY THE CONTRAST RATIO!!!


all manufactures say contrast ratio is 1000 or more.

when i test the units i found less than 500:1.

REASON CAN BE ABOVE.

zeiss a earlier hig end telescope manufacturer in germany use the liquid coupling technologie for lens telescops to improve the contrast since more than 10 years.

ALSO HIGH END CTR PROJECTORS USE IT.

i belief also hig end projektor manufacturers should use this technologie to improve from my point off view the only disatvantage that dlp have compare to crt.(i own also a sony 9"crt a g 90 so i know)

interesting for me is if other how own a projektor with the ti 1280x720 chip have a 100%clean optics when the unit is working and you look skew into.

rgds w.mayer
 
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