Optoma EH412ST Review

Now that there are so many 4K ultra HD projectors available, the price of 1080p projectors has dropped dramatically. This is great news if you’re looking for a quality projector at an affordable price. With the Optoma EH412ST, you get an exceptional picture quality and a lot of versatility at a great value.

While there are some modern features missing from the Optoma EH412ST, it’s a workhorse of a projector. It has a sleek, portable build with a  well-constructed housing that holds up beautifully to standard wear and tear. >>> Check it’s pricing on Amazon

What else can the Optoma EH412ST do? Let’s go through some of its features in more depth so you can decide if it’s the right projector for your home or office.

Optoma EH412ST Review – Main Specs

Optoma EH412ST
Resolution 1080p
Brightness (Lumens) 4,000
Contrast Ratio 50,000:1
Throw ratio .5:1
Screen size 36”-316”
Input lag: 32ms

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Set-up and Installation

The Optoma EH412ST has a short throw ratio of only .5:1. You can get a full 120” picture with just 4.5 feet of distance between the lens and screen. In addition, it has a high lamp brightness of 4,000 lumens. Considering these features together, what you get is a projector that can be used in any room, big or small, without the need for light control. For more ultra-short-throw projectors options check this guide.

You may not need to mount the projector, given its short throw. If you do decide to, it’s easy to install a mounting bracket. Once you have the Optoma EH412ST where you want it, the rest of the set-up process is easy. It’s basically plug-and-play, with easy to navigate menus if you need to adjust the picture settings.

The connectivity of the Optoma EH412ST is especially impressive. It gives you the dual HDMI ports you’ll find on most projectors but adds a VGA in/out and a USB-A port. This provides more versatility in terms of content sources. That’s one reason why this projector is recommended as highly for classrooms and meeting spaces as it is for home theaters.


  • Short throw ratio
  • Supports 4K content
  • Can be used in bright rooms
  • High color accuracy and contrast ratio
  • Flexible connectivity, including VGA, USB, and HDMI
  • Virtually maintenance-free
  • Supports 3D content from all HDMI sources


  • No Bluetooth or Wi-Fi capabilities
  • Weak on-board speakers
  • No zoom or lens shift

Picture Quality

The 1080p resolution of the Optoma EH412ST isn’t the best on the market, but it has a similar sharpness and clarity to a high-definition television. You can play 4K content on this projector, it will just display at a lower definition.

When it comes to color and contrast, the Optoma EH412ST is definitely up to snuff. It uses an sRGB Rec. 709 color profile that expands its color range compared to many projectors. The overall picture is vibrant and true to life, and the brightness is consistent across the image.

Can you use the Optoma EH412ST for gaming?

The Optoma EH412ST is a great option for gaming. It connects easily to all modern gaming systems and supports the same 1080p resolution you’ll get when watching movies and TV. The best feature of the Optoma EH412ST for gaming is the input lag. It’s relatively low at 36ms. It feels just like playing on a TV screen—just a lot bigger. This is great whether you’re doing split-screen multiplayer or just want an immersive gaming experience.

Optoma EH412ST Connectivity

The Verdict

The Optoma EH412ST is a solid, versatile projector. It can be used in almost any space and has a long enough lamp life most people won’t need to replace it for ten years or more. With a low input lag, short throw, and high lamp brightness, it can replace the television in your living room with surprisingly few modifications.

There are some things the Optoma EH412ST can’t do. Because there’s no built-in Bluetooth or Wi-Fi, it’s not easy to integrate into a smart home theater. That can also limit how you connect external speakers—which you’ll want to do, since the ones built in only have 10 watts of power and are seriously lacking on the bass.

Having said that, the Optoma EH412ST is still a great value for the price >>> Check it’s pricing on Bhphotovideo. It’s easy to set up and use and has the flexibility for outdoor movie nights, business conferences, and any home theater application. No matter what you use the Optoma EH412ST for, you can count on a crisp picture and reliable performance.