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Soulnight a écrit :J'ai cru lire que le HD25-LV était plus lumineux que le HD25 en 2D mais qu'il n'était pas plus lumineux que le HD25 en 3D... Ce serait tres dommage...
Quelqu'un pour confirmer/affirmer?
Differences between the HD25 and the HD25-LV
Higher light output. The HD25-LV produces just over twice as many lumens as the HD25. Bright mode measured 2420 lumens on the HD25-LV to the HD25's 1185 lumens. Cinema mode measured 2328 lumens to the HD25's 1146. Reference mode measured 2000 lumens (vs 982), while Photo mode measured 1993 lumens. Color balance in these image modes is roughly equal to their equivalents on the HD25, so you are not sacrificing color fidelity in order to gain the extra brightness.
Those who plan to set up the HD25-LV in a darkened room should be prepared for a very bright picture, even at screen sizes of 140" diagonal and larger. If the projector is too bright for your tastes, you can lower light output by engaging Eco mode, which reduces light output by 25%, or reducing BrilliantColor, which can reduce light output by up to 20%.
The HD25-LV's high brightness is especially helpful in 3D, where every lumen counts. 3D lowers image brightness significantly on both the HD25 and the HD25-LV, but the HD25-LV still has a significant advantage in light output. Whereas the HD25's 3D preset measured 682 lumens at default settings, the HD25-LV measured 1124 lumens under the same conditions. This does not account for the dimming effect of the 3D glasses, which we intentionally omit since neither projector includes 3D glasses. There are many different options available for 3D eyewear, using either DLP Link or an external emitter; just make sure the glasses you purchase are capable of running at 144Hz.
So, my thoughts on the projector as compared to the HD 33:
I was watching the HD 33 right before the HD 25 LV arrived. With the picture brightness and quality in mind, fresh from seconds before. I saw quite a difference in brightness about 1 3/4 of what the HD 33 output. I measured my HD 33 at 933 lm, this projector measures in at about 1750 lm. That is in 2-D, in film mode On 120 inch 1.3 gain screen Surrounded by ambient light from windows in the living room. Quite a huge difference, especially to the naked eye. The 3-D on the HD 33, actually looked quite good as it was. During the day, it was still viewable, but at night is where really shined. Looking almost as good as the IMAX theater down the road at the Regal Cinemas. Do not believe the reviews that say 3-D mode isn't enhanced by the HD25 LV projector.
The brightness, even to the naked eye, is doubled from the 600 and some odd lumens that I measured with my HD33. Upon measurement, I came out with about 1100 lm in 3-D mode using the film setting without any adjustments. The 3-D looks 10 times better than it did on the HD 33. I can't exactly describe why, but things seem to pop more, probably due to the enhanced contrast of the new projector. Sharpness also seems to have been tweaked.
There seems to be a push with red in the projector, that is most noticed with skintones. Knocking it back In the advanced settings, resolves the issue. Overall, you wouldn't be wrong in using the factory settings out-of-the-box. Though, with a few tweaks, you can make the picture look that much better.
Was it worth switching from the HD 33 to the HD 25 LV? Yes. Especially if ambient light is an issue in your viewing room. Even if it isn't, it will add that extra kick to both 2-D and 3-D viewing. I love the smaller physical size of the unit itself, it allows that much more flexibility in placement, no matter where you want to put it.
The mechanical noise that some people report, isn't happening on my unit, even at the bright lamp setting with dynamic black enabled. I am guessing it may have been an issue with earlier units and was resolved with the second batch. I cannot even hear the fan running in it, whereas with the HD 33 it was noticeable even over a decent volume soundtrack.
So, in summary:
Brighter in both 2-D and 3-D
Sharper picture, even with larger screens
Better overall color saturation
Smaller
Lighter
Almost silent
About the same price as HD33
More fine adjustments in menus
Multiple Inputs
VGA out, for times when you need it for presentations
Speakers for the same purpose
USB connection, for easy user upgrade
If you are on the fence between the HD 25 and HD 25 LV, I would suggest just going with the LV and paying the extra money, because you never know when you'll need the extra brightness... if you move, If you need to move the projector to another room that isn't light controlled, if you need to take it out for presentations, or just want the extra brightness in 3-D. As someone else here on the boards mentioned, it's better to have the extra lumens and not need it, then to need it and not have it.
If you have any other questions, feel free to ask. I'm still experimenting with the projector and will have more info as needed.
[/quote]Soulnight a écrit :Merci pour tout tes retours stephane77! Toujours aussi heureux? Plus de problème en 3D? Que penses tu du bruit du HD25 LV? D'après le test de projecteur central, il fait exactement autant de bruit que le HD25 alors qu'il a le double de Lumens!
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stephane77 a écrit :
Pour le moment j'ai utilisé très peu de fois le vidéoprojecteur dans le noir total, il a tourné régulièrement en plein jour en mode luminosité / Cinéma et quand le début soirée arrive je bascule en éco.
Pour le Bruit, en mode Luminosité + Black dynamique (2D ou 3D) - c'est audible dans les scènes silencieuses sans que cela soit perturbant pour moi (rappel j'avais un TW10 avant qui lui faisait un bruit d'avion) mais dès que je retire le Black dynamique c'est déjà moins perceptible.
Laurent a écrit :Sauf que tu massacres toute la colorimétrie...
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