projector

HD, 2k,4k, 8k Resolution Guide

Living in the digital era isn’t always easy. It is difficult to keep up with aspect ratio and resolution for PowerPoint Presentations. Here is a quick reference beyond this modern marvel of technology:

Resolution-6

 

Why is it called 2K-4K-8K?

An easy way to know what to call a resolution is to look only at the horizontal pixel count. 2K, 4K, 8K, etc. all refer to the horizontal resolution – approximately that number.

Note: For this post, all resolutions referenced are for 16×9 aspect ratio displays (with the exception of 2K).

HD (1920×1080)

HD, or High Definition, is used for two resolutions 1280×720 or 1920×1080.  These are commonly referred to as 720p or 1080p (see this post that explains “P” and “I”). I am going to refer to 1080p as HD.

Resolution-1

2K

HD, or High Definition, almost 2K, but not quite. 2K resolution is 2048×1080. It is a long story why computer displays did not just go with 2K, we’ll save that for another post. But needless to say, true 2K resolution is not used a lot in an HD world.

Resolution-2

4K

Like HD, 4K is actually 2 different resolutions depending on the context. The resolution we use for PowerPoint resolution and 4K monitors is called UHDTV 4K @ 3840 x 2160 pixels. The film industry will use 4096 x 2160 pixels, but this is not a 16×9 aspect ratio so it is not a part of this discussion and something you will most likely never use.

Resolution-3

8K

Yes, I am skipping 6K (noted below), because 8K is the next industry standard, also called UHDTV 8K @ 7680 x 4320 pixels. This is a lot of pixels and yes we design presentations for beyond 8K projection!

Resolution-4

 

6K, 10K, 12K and beyond are all resolutions, but they are not industry standards. Here is a quick list of resolutions, that includes them for reference.

HD = 1920×1080

2K = 2048×1080

4K = 3840×2160

5K = 5120×2880

6K = 6144×3160

8K = 7680×4320

10K = 10328×7760

Yes, PowerPoint can handle any of these resolutions. It is not so much a question of can PowerPoint handle a high resolution as it is can the computer and monitor/projector handle the high resolution. In addition, many stage events we develop presentations for use an array of side-by-side projectors to create a custom resolution. Usually, it is an array of HD, 1920×1080, projectors, so (and I am simplifying the details) a 4 projector wide setup will create an 8K wide by HD height image. TLC then creates a custom PowerPoint for the 7680 x 1080 pixel resolution, which we generically refer to as “Ultrawide Presentations.”

Industry Standard Resolutions in 1 Chart

Resolution-5

 

-Troy @ TLC

 

 

 

By |2016-08-10T08:31:00-07:00March 25th, 2016|Resource/Misc, Tutorial|

3 Blend Projection

Here is an awards show from a recent meeting. The screen was over 80′ wide and was run from a single PPT computer (with a backup computer inline as well).

To do this and keep really high quality display, the screen uses three slightly overlapped projectors – 3 blend projection. There is a lot of specialty equipment between the PPT computer and the projector. But getting there creates a smooth, single image. If you look at this image, you can see the three projector fields (this is before the projectionist adjusted the levels to make all uniform).

– Troy @ TLC

By |2016-08-16T09:32:52-07:00February 17th, 2012|Personal|

Really Mobile Presentations with the Logic Bolt Projector Cell Phone!

This may make the ‘elevator speech’ and sales presentations even more engaging. T-Mobile will be carrying the Logic Bolt cell phone which looks to have a fully functional projector built into it!

It is being shown at CES this week and features a touch screen interface, quad band GSM, support for Powerpoint, Excel, Word as well as the ability to connect directly to most video sources, and built-in projector that casts images 36-64″+.

– Troy @ TLC

By |2016-11-17T12:04:57-07:00January 13th, 2009|Resource/Misc|

Projecting with a Mirror

When space is limited things can get interesting. For this meeting rear projection was required, but there was less than 10′ behind the screen. Enter “the mirror.” This very specialized projector mount allowed the projector to be mounted at a near-vertical angle to shoot up to a large mirror, which then ‘projected’ onto the screen.

– Troy @ TLC

By |2016-11-17T15:29:33-07:00January 8th, 2007|Personal, Resource/Misc|

Send Presentation to Second Monitor/Projector

With the computer set for Extended Desktop mode (see October 1 post), next is to setup PowerPoint to make use of the second monitor.

In PowerPoint go to: SLIDE SHOW >> SETUP SHOW

In the Multiple Monitors section click the drop down menu and select “Monitor 2 Default Monitor.”

Now the slide show will be on the second monitor (usually a projector) and your monitor will remain in Slide Design Mode.

– Troy @ TLC

By |2016-11-17T14:25:04-07:00October 3rd, 2006|Tutorial|

Which Projector Should I Buy?

This is a common question I get a lot. And because PowerPoint and Projectors are almost synonymous, I thought it might be good to give my standard answer here. I recently posted the below to the ‘What projector should I buy’ question in the PowerPoint Newsgroup.
——————————————–

With your budget ($4,000.00) and general description I am going to make a few guesses:
– Small audience viewing (25-100 people)
– Front projection (projector in front of screen, out by audience)
– Connecting computer direct to projector (ie. no switcher, scaler, etc.)

With those assumptions, at your budget there are not many systems that outshine the other. In other words, you will do good with just about any reputable companies projector. But here are a few key items to make sure are on the projector and to consider:
1. Bulb life (what is the life of the bulb – in hours)
2. Bulb replacement cost (this can be $75 to $700 – check before purchasing so you know what to expect)
3. It should be at least 1024×768, but better would be 1280×1024
4. Size; consider your travel and placement needs (things do not have to be large any more)
5. Noise; listen to the units operating noise level (because it will be out by the audience, check if the fans are to loud)
6. Quiet Mode; this is good if projector is used in a small setting, as it limits the output power, but also runs near silent.
7. Contrast; this is a tricky number and hard to use in side-by-side comparisons (different companies measure differently), but in general more is better
8. Lumens; at your budget go for 2,000+, the closer to 5k the better
9. Lens Shift is better than keystoning (this is the ability for the projector to move the image up or down without needing to adjust the front legs, which creates a distorted projection)
10. Warranty, carrying case, etc.

In addtion, do a google search for the unit(s) you are considering and read some reviews, as well as look for anything in ‘groups.’

Troy @ TLC

By |2016-09-16T11:31:11-07:00March 13th, 2006|Resource/Misc|
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