Originally Posted by Kevin McCarthy
Alan: This projector does look really interesting, and suggests a bright future (pun intended) for LEDs in general, but I have to question your use of the term "local dimming". This term has only been used with respect to flat panel LCD TV's, where it means multiple (ideally, many) discrete LEDs that provide back illumination for the LCD panel, and whose brightness can be individually varied based on the the local brightness of the scene. The Lumis projector uses a SINGLE Phlatlight LED for each of the three primary colors, each of which is a monolithic 16 x 9 aspect ration high power LED, with NO capability for intensity variation across the device. The SIM2 MICO50 press release makes no mention of local dimming, and the Phlatlight PT-120 data sheet even boasts of "uniform surface emission" over its 12 square mm emitting area. Could you be thinking of a different but very real advantage of LEDs, in which the light source intensity can be dropped everywhere at very high speed (impossible with lamp technology) when the entire scene is dark? That effect is like that of a dynamic iris, but essentially instantaneous (and silent), which avoids many of the disadvantages of dynamic irises. The problem with star fields (the overall scene is dark, so the iris / LED dims, reducing the star brightnesses) remains, howeverhttp://www.sim2usa.com/home/files/do...CO50_dec09.pdfhttp://www.luminus.com/stuff/content...t120_rev06.pdf
Still, the SIM2 MICO50 is an exciting development in projector technology, and we look forward to your review! Oh, and we're lovin' the RS15!
There are two LED models that I know of one being the Sim2 and the Vivitek. The V uses and Iris while the Sim2 uses local dimming ( my wording ) or some kind of contrast or gamma enhancement without an iris.
Originally Posted by noah katz
"This machine is very bright."
Roughly how many L does it look like? Funny phrasing to allow for the claim that LED's look brighter for the same L because of higher saturation; either that or I'm really Scandinavian.
Will take some measurements and post early next week. To the eye on a Matte White screen 8 feet wide it is bright.
I do not want to guess but it is at least as bright as the RS with a new lamp and of course no light loss over time.
Originally Posted by Roger Dressler
I thought the term local dimming was used in reference to LED backlighted LCD screens to improve the contrast by locally dimming dark areas of the picture while leaving the brighter areas fully illuminated. In this PJ surely the entire light source is being dimmed for the entire screen surface. What's local in this context?
Roger, good questions and I hope to find out more with time to provide a technical answer. I can only say most will prefer Dynamic black turned on and what ever is taking place it is done with out an iris.
Originally Posted by Roger Dressler
No rainbows? Not even occasionally on B&W images? Amazing.
Originally Posted by kucharsk
How can any projector that does color sequentially not
produce a rainbow effect of some type or another?
Putting up a cross hatch and darting your eyes back and forth it is more stable then 3 chip to my eyes. The technology appears very analog to me. This could be considered subjective.
Originally Posted by Free
I am wondering how the 100,000:1 spec translates into real world viewing? Since the LED's can shut off completely, that would make achieving that measurement when displaying a full black field easy, but I would like to know how the black level in low light material compares to something like a Lumis, or RS35?
I would also love to hear what the ANSI CR measurement is on this, especially since it is new technology, and we really have no benchmark yet.
Originally Posted by humax
Alan, I am really looking forward to hearing more of your impressions on this projector. Pictures would also be appreciated. Is it too much to ask for a shootout with the Lumis?
I think the Lumis may come out the winner in black level and brightness and ANSI but this does not lack in ANSI. It does display color no lamp projector can display and contrast is very good and the fade to black does shut down your pupil. I do not ee any pumping artifacts or crushed whites. Will have some basic measurements next week.
Originally Posted by Chrisx510
Im really excited for the PJ! Can't wait to read some reviews from you and Jason. I am suppose to fly out to Rhode Island in the next few months I might have to fly out to NY and spend sometime at your guys store.
I would love to know how the MICO50 compares to the the Lumis and the RS25/35..
If you are ever in the area you must stop in. Please give us advance notice, we will make it worth your while
Regarding comparing this to the RS I prefer to leave that reply to others. I am hoping the Mico will make it into the hands of someone who has no agenda (as Im a dealer ) and could better address this question.
Originally Posted by Greg Young
I have a Lumis, the blacks are already so good in the end I don't think it will matter.
No wonder you disappeared, Im happy for you, congrats Greg.