Optoma Technology UHD50 UHD DLP Home Theater Projector usd1699

chhanthony

[url=]Image Display[/url]
Display System	1x 0.66" (1.7 cm) DMD DLP
Native Resolution	UHD 3840 x 2160 at 60 Hz
Maximum Resolution	DCI 4K 4096 x 2160 at 60 Hz
Maximum Brightness	2400 ANSI lumens
Aspect Ratio	Native: 16:9 Supported: 4:3, LBX
Dynamic Contrast Ratio	500,000:1
HDR Support	HDR10
Color Gamut Coverage	Rec. 2020, Rec. 709, DCI-P3
Color Depth	3840 x 2160 @ 30 Hz YUV 4:4:4 (8-bit, 10-bit, 12-bit); YUV 4:2:2 (8-bit, 10-bit, 12-bit); YUV 4:2:0 (8-bit, 10-bit, 12-bit) 3840 x 2160 @ 60 Hz YUV 4:4:4 (8-bit), YUV 4:2:2 (8-bit), YUV 4:2:0 (8-bit, 10-bit, 12-bit)
Color Wheel	Six-segment RGBRGB
Uniformity	80%
Scan Rate	Vertical: 24 to 120 Hz Horizontal: 31 to 135 kHz

[url=]Lens[/url]
Lens	F=2.5 to 3.26, f=20.91 to 32.62mm
Focus	Manual
Zoom	Optical: 1.3x Digital: 0.8 to 2x
Throw Ratio	1.21 to 1.59:1, ±5% tolerance
Projection Distance	2.9 to 34.89' (0.88 to 10.63 m)
Image Size	34.1 to 302.4" (86.6 to 768.1 cm) 34.1 to 140" (86.6 to 355.6 cm) optimal
Offset	100%

[url=]Features[/url]
Keystone Correction	Yes
Projection Method	Front, rear, ceiling mount, tabletop
Security	Cable lock slot, password protection
Speaker	2 x 5 W

[url=]Connectivity[/url]
Inputs	2 x HDMI with MHL 1 x 15-pin VGA 1 x 1/8" (3.5 mm) audio
Outputs	1 x 1/8" (3.5 mm) audio 1 x optical TOSLINK
Other Connectors	1 x USB Type-A (service) 1 x USB Type-A power out 1 x Ethernet LAN 1 x RS-232C control in 1 x 12 V trigger out
HDMI Version	2.0
HDCP Version	2.2
Mobile High-Definition Link (MHL)	2.1

[url=]General[/url]
Lamp Life	Bright Mode: 4000 hours ECO Mode: 10,000 hours Dynamic Mode: 15,000 hours
Fan Noise	Bright Mode: 28 dB Eco Mode: 25 dB
Power Requirements	100 to 240 VAC, 50 to 60 Hz (auto-switching)
Power Consumption	Bright Mode, Typical: 317 W Bright Mode, Max: 348 W Eco+ Mode, Typical: 259 W Eco+ Mode, Max: 285 W
Operating Conditions	41 to 104°F (5 to 40°C), 85% max humidity
Maximum Altitude	10,000' (3048 m) @ 73°F (23°C)
Dimensions (W x H x D)	15.4 x 5.1 x 11.1" (39.1 x 13 x 28.2 cm)
Weight	11.75 lb (5.33 kg)

chhanthony

https://www.optomausa.com/projectorproduct/uhd50

lnchu

我有彩虹眼，唔知現代dlp机會唔會把彩虹效應减到最低？

matt88p

lnchu 發表於 2018-1-8 13:23
我有彩虹眼，唔知現代dlp机會唔會把彩虹效應减到最低？

唔會!!
我可以肯定話你聽,  唯一控制彩虹抑制最好嘅牌子只有BenQ!  
我啱啱睇完Optoma 4k laser 港版,  值得一讚嘅係畫面真係好靚,  150寸2.35比1,  超巨型畫面,  但係色彩超實淨,  畫面超光,  對比度超高,  根本冇乜挑剔,
除咗喺任何畫面都見到彩虹,  黑位唔在講,  連光都見到彩虹呢樣真係..... 我試咗好多段Lucy,  有一幕摩根freeman 塊面啲皮膚對比靚到爆,
但係最大鑊嘅係,  亦都有一幕, 佢喺白色背景天空前面行過,  一個一套戲入面角色係凡人嘅人,  無啦啦變成上帝,  加因佢身邊有一個彩虹圈圍住個人發出光芒,  一個普通人能夠喺一套係一套片變成上帝,  真係可喜可賀

chhanthony

matt88p 發表於 2018-1-8 13:59
唔會!!
我可以肯定話你聽,  唯一控制彩虹抑制最好嘅牌子只有BenQ!  
我啱啱睇完Optoma 4k laser 港版,   ...

呢個同技術有關同品牌無關，
現時單laser的DLP投影機都是先經過磷粉色輪後再經過RGBY色輪，
用RGBY色輪是因為可以加強光度，但有說因為散熱問題，要做到部機好細部就只可以行兩倍速的色輪，
兩倍速加上RGBY再加上大反差嘅對比，會令人好易見到彩虹。

Benq嘅LK870商用機都係用RGBY色輪但用上水冷，所以部機會比Optoma嘅4K laser機大部(好似Benq嘅W11000咁上下大)
但呢部Benq一樣會睇到彩虹。

matt88p

chhanthony 發表於 2018-1-8 14:52
呢個同技術有關同品牌無關，
現時單laser的DLP投影機都是先經過磷粉色輪後再經過RGBY色輪，
用RGBY色輪是 ...

呢個我知道, but Thx for share!  
所以點解佢從w11000開始個外殼從來冇變過,  都係用返同一個,  Lk870 本來都係我考慮之一,  但係可惜冇HDR

orochicy

港紙9999版本？

leekoonhung

Chhanthony,matt88p 兩位大師兄對新款JVC x9900b有什麼評價?這兩個月不斷有投影機新出，睇到頭都痛

av81

我都睇過U68 optima，彩虹的確明顯，同埋光到一個極係睇耐少少就開始眼攰眼乾

chhanthony

leekoonhung 發表於 2018-1-8 20:35
Chhanthony,matt88p 兩位大師兄對新款JVC x9900b有什麼評價?這兩個月不斷有投影機新出，睇到頭都痛{:1_332: ...

唔迷戀真4k的話而家中環境夠黑的話入JVC唔會錯。