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Tag Archives: HDMI 2.0

  • HDMI 2.1 and 4K Home Cinema HDMI Guide

    Most people don't consider their cables when upgrading their home cinema projector, but with advances in 4K you'll need to think carefully about your setup. If you're looking to upgrade your home cinema projector but are still stuck with an old HDMI cable this guide can show you how your cable will perform.

    How to setup my 4k projector

    There is debate over whether HDMI cables should be listed as their 'version' number or just as 'standard' or 'high speed' but essentially version 2.0 and above is high speed. A 4K Home Cinema projector like the Acer V7850 has a HDMI 2.0 input specifically for 4K so you will need a HDMI 2.0 cable to get the full 4K experience.

    HDMI 1.4 only supports up to 4k 30hz,  whereas HDMI 2.0 can support 4k 60hz, ideal for 4k home cinema viewing. Connecting your HDMI 1.4 to a 4K projector will give you an up-scaled 1080p image, not quite the 4K clarity available.

    Any High-speed HDMI cable will do for your home cinema, they are now relatively cheap, and 'high speed' is just the name for HDMI 2.0 cables which are now the most commonly available since 2013.

    What is HDMI 2.1?

    Image result for hdmi 2.1

    Essentially, HDMI 2.1 has the capability to double-down on what HDMI 2.0 can manage. 2.1-standard cables will be able to easily outstrip the 4K limit, future proofing your set up with a maximum sending a maximum of 10K content at 120fps down the cable. HDMI 2.1 can even handle dyanmic HDR and variable refresh, adjusting pixels on-the-fly for crystal clear depth and focus.

    Will I need anything else for my 4K Home Cinema?

    You also need to consider the source of the 4K content, whether it's a Blu-ray player, games console or a AV receiver you'll need something that can send a 4K signal.

    The Bottom Line

    Getting 4K into your home is far more involved than just buying a 4K home cinema projector. You need the right pieces of the puzzle for it to work, otherwise you're just watching up-scaled 1080i/1080p, which isn't bad, but it's not 4K.

  • Acer 4k Home Cinema Range Review

    Acer 4k Home Cinema Range Review

    Acer now has a full range of 4K Projectors offering a comprehensive range of 4k options, so now it’s time to see how they perform. We have broken down the key features of each projector for this Acer 4K Home Cinema review, with an at-a-glance table and all the latest 4k terms explained.

    At-a-glance comparison table of Acer 4k Projectors:

    Acer M550 Acer H7850 Acer V7850 Acer V9800
    RP £1,999.99 £2,299.99 £2,699.99 £3,950.99
    Rank Entry Mid High Pro
    Key Feature 1 2900lms 3000lms 2200lms 2000lms
    Key Feature 2 Rec. 2020 Compatible Rec. 2020 Compatible Rec. 2020 Compatible Rec. 2020 Compatible
    Key Feature 3 Rec. 709 Compatible Rec. 709 Compatible
    Key Feature 4 HDR Compatible HDR Compatible HDR Compatible HDR Compatible
    Key Feature 5 Vertical lens shift Vertical lens shift Vertical lens shift Horizontal / Vertical lens shift
    Colour wheel Standard Standard RGBRGB RGBRGB

     

    Key Comparisons

    The Acer M550 projector is an excellent entry level 4k choice, only 100 lumens behind its mid range cousin the Acer H7850 which also offers an affordable cinematic experience. Both offer vertical lens shift for improved adjustability.

    The Acer V7850 is what many consider the colour purist model due to its RGBRGB colour wheel. If you want life-like immersion, the fantastic colour reproductions of the V7850 are award winning. The V7850 has won awards in the press with Home Cinema Choice and T3, proving itself a market leader in the 4k projector high end range.

    At the Pro level the Acer V9800 produces similarly stunning visuals to the H7850 but has more image positioning options, allowing for more precisely adjusted home cinema. Uniquely this model also is one of the projectors to offer the rare horizontal lens shift as well as vertical lens shift so you can place the projector on the ceiling or in the corner of the room with little or no skewing of the image horizontally or vertically.

    Some key technologies explained:

    4K UHD

    The Consumer Electronics Association (CEA) definition of 4K Ultra HD (UHD, 3,840 x 2,160) states the display resolution must have at least 8 million active pixels. Acer4K Ultra HD resolution with TI XPR technology serves more than 8.3 million on-screen pixels —four times more of a Full HD. All details come alive.

    HDR compatible

    HDR (High dynamic range) is a technique to reproduce a greater dynamic range of luminosity. It preserves details in the darkest & brightest areas, and presents a similar range of luminance that the colour is close to how we see in real life. The expanded contrast & wider range of brightness produces true-to-life colour. Image comes to life with HDR compatible.

     Rec. 2020 compatible

    Rec. 2020, also known as BT. 2020, is the recommendation for UHDTV defined by International Telecommunications Union (ITU). With Rec. 2020 compatible, projector is able to read and translate rec. 2020 language into rec. 709 for superior colour reproduction.

    Rec. 709

    Rec. 709 is a standard of HDTV. It is also the colour standard that movie direct or adopted for post-production. Thanks to the inclusion of Rec 709, Acer’s projector is able to reproduce faithfully the original colours and tones to give viewers an authentic movie-watching experience. Recreate colours exactly as they’ve been imagined by the director.

    HDCP 2.2

    HDCP 2.2 is the specification required for HDMI ports to play full 4K video. If your HDMI port is older than V2 then you will need to check how well 4K video displays depending on your HDMI version. All the Acer projectors above have one HDMI 2.0 port which is HDCP 2.2 enabled for your 4K content.

    The Verdict

    There is now something for everyone in the Acer 4k home cinema range whether you are on a budget or looking for the best contrast ratio/features money can buy.

    The award winning V7850 is also a great high end choice at a good price whilst the entry level Acer M550 and the H7850 models offer amazing value for a 4k projector.

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