本帖最後由 gamma 於 2025-7-10 12:04 編輯
原來imax laser 都有幾種:
GT: Dual projector system capable of up to 1.43:1 aspect ratio
CoLa: Single projector, limited to 1.90:1 aspect ratio.
XT: Single projector, limited to 1.90:1, 6 channel sound
ps. 最清應該都係 70mm film format，不過光暗位就唔知點
gamma 發表於 2025-7-7 07:25
通常我會喺貓眼search喺我行程附近邊間戲院有laser IMAX。
https://www.maoyan.com/cinemas?hallType=2
...
我係環宇城睇左F1，香港飛好似160，珠海會員價64人仔，好滿意声画表現，力水感覺好過K11
gamma 發表於 2025-7-10 09:41
superman 大家會睇 IMAX 定 dolby?
src: imdb
今日打風屋企無聊睇IMAX YouTube嘅片，跟住再google Dolby，原來要有Dolby Cinema先係正貨，好無奈又要上深圳，不過去貓眼search Superman冇得睇Dolby Cinema
https://www.dolby.com/movies-tv/cinema/
撳破keyboard無覓處，資料全在p76:
關於IMAX版電影戲院選擇問題及分析
https://post76.hk/forum.php?mod=viewthread&tid=96670&extra=page%3D1&page=1
ps imax laser @ megabox, 但係用邊隻Projector就無從稽考
https://post76.hk/thread-357719-1-1.html
from deepseek
The *IMAX theatre at Cineart Megabox in Hong Kong* uses the *IMAX with Laser (Commercial Laser - CoLA)* projection system, *not* the GT Laser. Here's the confirmation and reasoning:
1.*Theatre:* Cineart Megabox IMAX (located in MegaBox Mall, Kowloon Bay, Hong Kong).
2.*Projection System:* *IMAX with Laser (CoLA)*.
3.*Recent Upgrade:* This venue was upgraded from the older IMAX Xenon (XT) system to IMAX with Laser in *2021*.
4.*Key Reason - Screen Size:* The screen at Megabox Hong Kong, while large, is *not tall enough* to require the GT Laser system. It measures approximately *22 meters (72 feet) wide and 12 meters (39 feet) tall. GT Laser is reserved for screens **taller than 24 meters (79 feet)*.
5.*Technical Fit:*
* *CoLA (Commercial Laser):* Perfectly designed for premium multiplex screens of this size (large, but not massive). It uses a *single, powerful 4K laser projector*.
also from deepseek:
While Shenzhen boasts excellent IMAX with Laser (CoLA) venues like CGV Longhua, offering a major upgrade over Xenon with 4K resolution, laser brightness, HDR contrast, and Rec.2020 color, *it currently does not have any IMAX theatre equipped with the top-tier GT Laser projection system.* For that experience in China, you need to visit purpose-built giant screen venues in Beijing or Shanghai.
https://youtu.be/PzgmbUqu0Jg?si=LJ2xA88ySRyGF_Fg
https://youtu.be/nWGgOVYmCsA?si=zy2oYMcnFBijAuvE
Next-Gen Dolby Vision Laser Projector to Expand Reach of Premium Cinemas
Dolby has teamed up with the high-end projector manufacturer Christie Digital Systems to develop a next-generation Dolby Vision laser projector, which will begin rolling out into theaters in the coming weeks. Christie has been around since 1929 and has broken many technology barriers along the way, including the launch of digital cinema projection, which revolutionized the movie industry. (Based in California, Christie is now owned by Japan’s Ushio, Inc.) This new 4K Dolby Vision projection system offers more than twice the brightness of typical cinema presentations, according to Dolby, with a contrast ratio “well exceeding a million-to-one.” The results include “the brightest whites, darkest blacks, and the finest details in between,” according to the company. The new projector also reportedly delivers saturated and real-life colors using RGB pure laser illumination to enable Dolby’s Wide Color Gamut 1.0 — which is nearly twice the color gamut of Rec. 709, and 122% of DCI-P3-capable projectors, according to Dolby.
https://www.audioholics.com/news/dolby-vision-laser-projector
踏破鐵鞋無覓處得來全靠大數據
https://youtu.be/V1231gD-7qQ?si=_DXmdwuT1ctN9qwf
