Comment text appears below:
Though i do very appreciate the instructive reviews i have read here on ProjectorCentral, i do have a criticism. I have been learning about various aspects of video projectors and i am gradually learning things. Sometimes, the reviews put the comparisons in absolute terms which result in statements which are in short of a thorough true description of the differences and fair comparisons. This is sometimes the case when it comes to black levels and contrast. I just got to learn the shortcoming of the iris technology in creating deep blacks when it comes to scenes where there are both bright parts and black areas where, iris can not close down to generate a deep black. So it is not a fair comparison to say an LCD projector producing deeper blacks than a DLP projector. Optoma H81 can generate deep blacks no matter if there is a bright subject in the scene or not. LCD projectors may be able to produce even deeper blacks than H81 in certain scenes but not certainly in all situations. An exampleray movie that illustrates the situation is Dogville where the set in about %90 of the movie is like bright foreground subjects against a black background. In such situations LCD projectors relying on iris to generate deep blacks cry their shortcoming where the background is just dark gray! So putting things in absolute terms like Panasonic or Sony produce deeper blacks than Optoma H81 can mislead novices like me who read these reviews in the hope of getting an expert point of view before making their decision but are unaware of conditions within which the comparison is made. I based my first purchase based on these reviews telling me new LCD projectos produce even deeper blacks than DLP projectors to come to a point to observe how false this statement can be when it is put in such absolute terms. I learnt about this by a side-by-side comparison of one LCD and one DLP projector. I understand manufacturers may intentionally attempt to hide the shorcomings of their products in order to sell it better. It is the expert reviewers upon which the non-knowledgeable readers can put their trust and hope to find out about where some facts may be hidden within the official specifications and descriptions.

Actual brightness of a projector is another example of this situation.

I hope it is understood i do not mean here to devalue the valuable reviews i have read here and elsewhere but, to help in improving them by showing where they are not adequately informative or thoroughful.

Best regards, Ramin