SKU: 92421581356

Optoma - 21.50 mm to 28.70 mmf/3 - Standard Throw Zoom Lens

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Description

Optoma - 21.50 mm to 28.70 mmf/3 - Standard Throw Zoom LensOptomas 21. 50 mm to 28. 70 mm f 3 Standard Throw Zoom Lens is a precision projection accessory built for versatility, creativity, and reliable performance. This 1. 3x optical zoom lens expands your projection toolkit, letting you adapt quickly to a wide range of room sizes and throw distances without swapping lenses. Whether youre teaching in a classroom, delivering a high stakes business presentation, or enjoying immersive home entertainment, this

Optoma’s 21.50 mm to 28.70 mm f/3 Standard Throw Zoom Lens is a precision projection accessory built for versatility, creativity, and reliable performance. This 1.3x optical zoom lens expands your projection toolkit, letting you adapt quickly to a wide range of room sizes and throw distances without swapping lenses. Whether you’re teaching in a classroom, delivering a high-stakes business presentation, or enjoying immersive home entertainment, this lens enhances image sharpness, color fidelity, and overall clarity. The f/3 lens aperture balances brightness with depth of field, ensuring vivid, legible text and crisp graphics even in rooms with moderate ambient light. Its compact, robust construction is designed to withstand daily classroom and meeting-room usage while maintaining smooth, precise focus and easy handling. Designed to work with Optoma projectors that support interchangeable lenses, this standard throw zoom lens makes it effortless to tailor image size and throw ratio on the fly, enabling you to frame the screen perfectly for any audience. The result is consistent brightness across the screen, reduced keystone distortion, and a more natural, lifelike projection that brings content to life with minimal setup. If you value flexibility, fast response, and dependable image quality, this Optoma lens delivers an essential upgrade to your projection system, enabling dynamic presentations, engaging lessons, and entertaining home cinema experiences in a single, compact accessory.

  • Versatility in every throw – With a focal range of 21.50 mm to 28.70 mm and a 1.3x optical zoom, you can cover standard throw distances for many room sizes, enabling quick transitions from classroom demonstrations to full-room projections without moving the projector or changing lenses.
  • Bright, sharp images – The f/3 aperture delivers solid brightness while maintaining sharpness across the image. Expect clean, readable text, crisp line work, and vibrant color reproduction that remains consistent from center to edge, ideal for data-heavy slides and multimedia content.
  • Fast, reliable focus – This lens is designed for fast focusing with minimal hunting, helping you keep up with live presentations, lectures, and dynamic video content. The manual focus ring offers precise, tactile control for fine-tuning focus on the fly.
  • Compact, durable design – Engineered for everyday use, the lens features a compact footprint and a robust build that fits easily into crowded setups. Its compatibility with Optoma projector lens mounts ensures a secure, stable fit and long-term reliability.
  • Creative projection options – The standard throw capability and smooth zoom allow for a range of creative setups, from close-up product demonstrations to wide-angle room-filling displays, giving you flexibility to adapt to different audiences and environments without changing equipment.

Technical Details of Optoma - 21.50 mm to 28.70 mmf/3 - Standard Throw Zoom Lens

  • Focal length range: 21.50 mm to 28.70 mm
  • Maximum aperture: f/3
  • Zoom ratio: 1.3x optical zoom
  • Projection compatibility: Standard throw lens designed for Optoma projectors with interchangeable lens mounts
  • Weight (approximate): varies by model and configuration; consult product packaging for exact specifications

how to install Optoma - 21.50 mm to 28.70 mmf/3 - Standard Throw Zoom Lens

  • Power off and unplug the projector before handling lenses to prevent damage and ensure safety.
  • Remove any existing lens following the projector’s manual instructions, taking care to keep the lens mount clean and free of dust.
  • Align the new lens with the projector’s interchangeable lens mount. Gently insert the lens, then rotate or click into place until you feel a secure engagement.
  • Tighten any locking screws or locks as required by your model. Confirm the lens is firmly attached and does not wobble or misalign.
  • Power on the projector, then use the zoom and focus controls to frame the image. Adjust the throw distance as needed to achieve the desired screen size, ensuring sharp focus across the screen.

Frequently asked questions

  • What is the focal length range of this lens? The lens covers a focal length range from 21.50 mm to 28.70 mm, enabling flexible throw distances for various room sizes.
  • What is the maximum aperture? The lens has a maximum aperture of f/3, which helps maintain brightness while delivering good depth of field for projection content.
  • What is the zoom type and ratio? It features a 1.3x optical zoom, allowing you to smoothly adjust image size without moving the projector.
  • Is this lens compatible with all Optoma projectors? It is designed for Optoma projectors that support interchangeable lenses. Always verify compatibility with your specific projector model and lens mount.
  • How should I maintain image quality? Keep the lens clean and free of dust, use the projector's lens protection when not in use, and perform periodic basic maintenance as recommended by Optoma to preserve sharpness and color accuracy.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 92421581356

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Professor62
Lake Worth, US
★★★★★ 5
Great no-frills bag. Slim and compact, but still holds plenty.
Size: 17.3 Inch, Style: 1-pack
I needed a case for my new HP Pavilion 17" laptop. I didn't need anything fancy or with all kinds of special features. I didn't need one with a lot of extra storage space beyond what was required for the laptop, its power adapter and cord, and a small mouse. And above all I didn't want one with a large, bulky profile, one that would feel like I was carrying--or rolling--a small suitcase. Turns out this AmazonBasics bag was just what I was looking for. It is indeed slim and compact, and it's lightweight to boot (only weighing about 1 lb.). And even when it's filled to the brim and weighs a good bit more, it STILL looks slim and compact. For its economical price point, it is constructed very well, and thus should be quite durable for light to moderate use. The stitching is very tight and clean, with even strong, "zipper-stay" stitching being included on this inexpensive bag. The zippers themselves (which I tend to be picky about) are of very good quality, and open and close without much effort. The zipper pulls are ample in size and weight, and are very strong and sturdy. In other words, they're NOT cheap. I appreciate the case's simple yet thoughtful design. I especially like the single, large, zippered pocket on the front "face" of the bag, where you can easily and conveniently keep oft-used items such as your phone, keys, power bank, and so forth. Too many laptop bags' outside pockets are unzippered, which I find both impractical and unsafe. The AmazonBasics bag holds my laptop snugly and securely, yet I can still manage to squeeze in extra padding (about 3/8" thick and 1.5" wide) all around its perimeter. I do this because the case provides only the most minimal of padding throughout. (Mind you, I wouldn't have expected sufficiently thick padding on a bargain bag such as this one, but it's worth bringing attention to nonetheless.) The upshot here is that, as well constructed as this case is, it's not designed to protect our laptops from accidental drops onto hard surfaces. There simply isn't enough shock-absorbing padding. But frankly I'm not that worried about accidental drops. Rather, for my most pressing general needs--storing or transporting my laptop and keeping it free from dust, scratches, dents and the like--this AmazonBasics bag really fits the bill. It's easy to carry, and it's easy (and quick) to access your laptop. I'm VERY happy with it, would buy another one without hesitation, and I highly recommend it! Finally, my goal as a reviewer is always to try and help others make better informed decisions about potential Amazon products they may be considering. Toward that end, I hope in some small way that you may have found this helpful. Thanks for reading my review. Best of luck with your shopping!
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Reviewed in the United States on October 16, 2016
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Brian S. Mahoney
Massapequa, US
★★★★★ 4
Love this bag.
Size: 15.6 Inch, Style: 1-pack
I love this bag. It was affordable, and it has plenty of compartments to store my cords and portable drives. It is fun to be able to get work done at coffee shops and theme parks etc...
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Reviewed in the United States on May 5, 2026
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Q K
Draper, US
★★★★★ 5
For 12.4 tablet with hard case on
Size: 14 Inch, Style: 1-pack
I got this black carrying case for my tablet and it fits well inside and you have room still if you want to carry like cables or some documents and stuff. Now only thing I wish that it was better was inside padding but for the price it is still decent as I have a case on my tablet and hard one for the matter so I just needed carry bag to carry around and it would be fine for me for anyone else think it thru as padding is not very protective inside but other then that nice quality bag and feels sturdy
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Reviewed in the United States on June 5, 2026
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KDomingos
Los Angeles, US
★★★★★ 5
Easy to carry
Size: 15.6 Inch, Style: 1-pack
Spacious, lightweight, and easy to carry. Good quality and great value for the price.
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Reviewed in the United States on May 10, 2026
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Jackson
Lexington, US
★★★★★ 5
Great Budget Laptop Bag / Sleeve
Size: 14 Inch, Style: 1-pack
I got this bag to use as a laptop sleeve in my backpack, because I honestly don't trust cheap stuff on amazon anymore, so I got something that would likely be more sturdy, a bag instead of a sleeve. Protection is decent and the zippers, material, construction, and overall feel, don't come off as cheap at all. There could be a bit more padding, but for the quality of bag I got for the price, it's a steal. There's an outside compartment, with folder like flaps inside, where you can use this bag as a folder too. 4.5/5 product and wish there was more padding pro protection Strap is removeable to use which is nice for carrying like a suit case, or using as a sleeve in a bag
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Reviewed in the United States on February 18, 2026

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