The DJI O4 Lite Air Unit has a lot going for it—lightweight, compact, and ideal for sub-250g micro builds. But if you’ve flown it in tight spaces or tried to use image stabilization, you’ve probably noticed the rather narrow FOV (field of view). That’s where Flywoo steps in with a clever solution: a simple wide-angle lens that significantly improves the O4 camera’s FOV—no need to modify the camera or glue on risky DIY optics. In this review, I’ll share my hands-on experience with the Flywoo wide-angle lens, how it performs, what to expect, and what to watch out for.
Learn more about the DJI O4 Lite and the best settings in our tutorial: https://oscarliang.com/how-to-setup-dji-o4-lite/
Update (Jan 2026): There is now a new version, check out my review https://oscarliang.com/flywoo-o4-wide-angle-lens-new/
Table of Contents
Where to Buy
You can buy the Flywoo Wide-Angle Lens kit from these vendors:
- Flywoo: https://oscarliang.com/product-rfff
- Banggood: https://oscarliang.com/product-sqzp
- AliExpress: https://s.click.aliexpress.com/e/_oD8BUqa
Why the Wide-Angle Lens Matters
The DJI O4 is fantastic for micro FPV drones, but the narrow FOV makes proximity flying feel less natural and restricted. Things get even worse when you apply image stabilization like RockSteady or Gyroflow, which crop into the footage further and make it feel even less watchable.
Flywoo’s wide-angle lens aims to fix this, and in many ways, it succeeds. This accessory is easy to install, and bumps the O4 camera’s FOV from around 117° to 155°, nearly matching the more expensive O4 Pro camera. All without modifying or risking damage to your delicate DJI O4 camera.
Testing – How It Performs
On the bench, I immediately noticed the increase in FOV. The wider view was obvious, but so were the edges of the lens in both the goggles and raw video.
The edges were visible when setting the camera to 4:3 aspect ratio and Wide FOV which gives you the widest FOV. Luckily, if you’re using Gyroflow or DJI’s built-in RockSteady stabilization, it crops in and removes those edges in the final video.
Not only does the wider FOV make the footage look more cinematic and immersive, it also improves your flying experience. With more of the environment in view, it becomes easier to judge distance and timing, making proximity flying and freestyle maneuvers feel much more natural. I found myself flying more confidently and with greater precision.
There is a slight drop in image clarity—some softness and a mild color shift—but nothing dramatic. You’ll only notice it if you zoom into the footage or compare it side-by-side with footage shot without the lens. The lens flare is also a bit more pronounced when flying toward bright sunlight, likely due to internal reflections from the extra glass lenses. Still, these minor drawbacks don’t outweigh the benefits in my opinion.
Here are some footage from the Firefly18 I recently reviewed: https://oscarliang.com/flywoo-firefly18-o4/
Bonus Feature – ND Filter Holder
The Flywoo Wide-Angle Lens comes with a removable UV filter that doubles as a lens protector.
The UV filter can be swapped for ND filters (available separately from Flywoo). ND filters are essential for controlling exposure and maintaining proper motion blur in bright lighting conditions, especially when shooting cinematic videos. You can learn about the use of ND filters in this tutorial: https://oscarliang.com/nd-filter-fpv/
Purchase Flywoo’s ND Filters Set here (includes UV filter, ND8, ND16 and ND32 filters): https://oscarliang.com/product-d00b
3 Different Versions
The Flywoo Wide-Angle Lens also serves as a mounting adapter, and choosing the correct version allows you to fit the DJI O4 Lite camera into frames that support different cameras. This makes the O4 Lite Air Unit much more versatile and accessible for a wider variety of drone builds.
Plug & Play Version for Flywoo O4 Builds
Also known as the “Cam Shell” version.
This version does not have any mounting holes of its own. Instead, it requires the use of the Flywoo O4 Camera Shell adapter from Flywoo, which must be purchased separately. The camera shell turns the O4 Lite into 18mm mounting. Once the shell is installed, you can simply clip the wide-angle lens onto it.
You can purchase the O4 Camera Shell adapter here: https://s.click.aliexpress.com/e/_oonV9l8
Specs:
- Size: 16.8mm × 21mm × 18mm
- Added Weight: 3.7g (plus 1.3g from the camera shell, total 5g)
O3 Mounting Version
This version turns your DJI O4 Lite camera into the same size and mounting pattern as the DJI O3 camera, making it compatible with a wide range of O3-compatible frames available today.
It’s arguably the most versatile option, but keep in mind: if you’re mounting the O4 Lite like an O3 camera inside a full-size quad (such as a 5-inch build), you may need a longer camera cable—the one designed for the O4 Pro should work.
Specs:
- Size: 21mm × 23.5mm × 22.3mm
- Weight: 7.5g
O4 Pro Mounting Version
This version turns the O4 Lite camera into the same form factor and mounting as the DJI O4 Pro, ideal for new frames that are designed for this new camera mounting.
Just like the O3 version, using it in larger frames may require a longer camera cable, such as the one used for the O4 Pro.
Specs:
- Size: 21mm × 23.5mm × 20.5mm
- Weight: 7.5g
Which Version Should You Get?
It depends mostly on your frame’s camera mount size:
- If your frame supports DJI O3 or O4 Pro mounting, go with one of those versions for more secure fitment.
- If your frame uses nano-sized 14x14mm mounts, choose the Plug & Play Cam Shell version.
A Closer Look at the Design
The lens housing is 3D-printed in TPU. It’s flexible, fits snugly, and is overall well made.
Adding this wide-angle lens introduces 5 to 7.5 grams of extra weight to your build. On 2″ quads or smaller, this weight might be noticeable and may slightly affect performance. However, on 3″ or larger drones, the added weight is negligible and shouldn’t pose any issues.
Drawbacks and Quirks
Additional Weight
The lens adds around 5g to 7.5g, which could be too much for 1S tiny whoops. However, on open-prop micro quads, even 1S-powered ones, the extra weight is usually manageable. On anything 2.5″ or larger, it’s unlikely to be an issue.
Slight Image Softening & Glare
Due to the additional glasses, the image may appear slightly softer. This is only really noticeable when zooming in, so it’s not a dealbreaker for most people. You might also experience increased lens flare when facing toward the sun, caused by reflections between the added lens elements. Additionally, with more glass surfaces, dust is more likely to build up, so you may need to clean it more frequently.
Lens Visible in View
In the goggles, you may see the edges of the wide-angle lens, especially when using 4:3 aspect ratio and Wide FOV settings. However, this can be removed in the air unit recording using image stabilization tools like Gyroflow or the built-in RockSteady on the DJI system. In Gyroflow, you might have to reduce FOV to something like 0.9 to completely eliminate the lens edges. If you are new to Gyroflow, check out my beginner’s tutorial: https://oscarliang.com/gyroflow/
Lens Movement in Crashes
Because the plug and play version of the lens is a friction fit, a hard crash can shift it forward slightly, giving a fisheye “skate video” look until get the drone back and manually push it back. The O3 and O4 pro versions won’t have this issue.
Final Thoughts
The Flywoo Wide-Angle Lens is a game-changer for anyone flying with the DJI O4 Lite camera. It significantly improves the flying experience by offering a much wider and more immersive field of view. More importantly, it makes stabilized footage (via Rocksteady or Gyroflow) actually watchable, addressing one of the key shortcomings of the O4 camera.
While it’s not perfect—due to the added weight, lens edges in view, and slight image sharpness and glare compromises—it solves a real problem that DJI left unaddressed. And for builds where space and weight allow, this is a highly recommended upgrade. Just make sure to pick the right version based on your camera and frame.
11 comments
It looks like flywoo came out with a newer version. Looks a lot more refined than this one. Have you had a chance to try it/ review it yet?
I’ve ordered it; but it won’t be here till the end of December
Yes they have. I have it just waiting for some good weather to test it.
Do you think one of these could be retrofitted to the Meteor 75 Pro o4 Lite?
With modifications to the canopy, perhaps.
I wonder if the internal Rocksteady stabilization still works on the modified lens.
Yes it works fine, but sometimes it crops more than necessary that’s why I prefer using gyroflow so i have full control.
Thanks for your review, Oscar! Unfortunately, this solution is neither good in terms of visual/fov, nor in mounting and weight. I will wait for some good replacement case/lens, or go ahead with 3d printed case and Caddx Ratel or Ant lenses.
There is a new case, “Rate” is called. This case will house DJI O4 Lite camera and will upgrade the FOV to 145 degrees. I tried the Flywood, nice solution, yet too much fidling from my part to have the camera fits and sits perfectly. I had to add foams to eliminate the jello effect and shaking inside the case with the camera.
Thank you Oscar for this review.
Any option for the meteor 75 pro?
Currently no, you probably need some of sort of custom canopy for the 14x14mm cam shell. Anyway it’s a bit too heavy for the Meteor75 Pro.
What is the diameter of the Flywoo lens?
What is the focal length of this lens?
Is the lens material glass or plastic?
If you cut off the entire front part of the adapter with the filter, will there no longer be dark areas in the image (there will be no vignette)?