By John Archer
Reviewed: 18 Feb 2011
Review Price free/subscription
The loud click when changing presets has nothing to do with the dual iris. It is the Xenon filter coming in or out depending on the choosen preset.
Warning - I've had a couple of JVC projectors - DLA 950 replaced after 18 months by JVC for the above model - this has now stopped working too - great picture etc - but do these projectors have longevity - or will you have costly repair expenses after 18 months??
The reviewer is wrong about the quoted contrast ratio being a true reflection of the devices ability to "place light and dark objects simultaneously within the same frame". The 70,000:1 is still nonsense even though it isn't considering the effects of a dynamic iris. 70,000:1 is it's "full on / full off contrast ratio. This measure the difference between the darkest all black screen and the brightest all white screen, separately. It absolutely does not measure the difference between the darkest and brightest it can display on-screen at the same time. Unless you like watching an all black screen, this number is as meaningless as the CR on any other home theater projector.
The only contrast ratio that matters is the ANSI contrast ratio (or static cr). This measures the capability with dark and light imagery on-screen at the same time (like it would be for movie content). The JVC devices are so dim that the 70,000:1 contrast ratio's can drop to a significantly less impressive 150:1 with real content. High end 3-chip dlp devices typically achieve 500:1 - 650:1 ANSI contrast. This, coupled with their brighter bulbs and high end lenses, gives them a more vibrant and detailed image. JVC never tells you the ANSI contrast because their devices really aren't as great as their reputations that precede them.
I'm sick of hearing these silly contrast claims from JVC with their holier than though "we don't use a dynamic iris" nonsense. If I wanted to watch an all black screen, I wouldn't need a projector. I would just sit in a dark room. I like movies! In fact, I'm sick of projector marketing specs generally. There is never any useful information to distinguish a great device from a complete turkey. Things like the quality of the glass (if it even has a glass lens), are always missing. Mr reviewer, maybe do a little research before misleading readers!
Warnings please don't lend Matt any of your projectors - he keeps breaking them!
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