The DJI O4 Lite camera is an incredible piece of hardware. Weighing just 8g but capable of 4K 60fps videos, perfectly for micro FPV drones. While image quality is genuinely impressive, one major complaint has been the narrow field of view. At just 117°, the stock O4 lens feels zoomed in. It’s flyable, but it’s not enjoyable. And once you apply stabilization in Gyroflow, the image becomes even more cropped, which makes the footage feel less immersive. That’s exactly where the Flywoo O4 Wide Angle Lens comes in. After testing the new version, I honestly feel this is how the DJI O4 camera should have been released in the first place.
Learn how to setup DJI O4 Air Unit: https://oscarliang.com/how-to-setup-dji-o4-lite/
Table of Contents
Where to Buy
Get the Flywoo Wide Angle Lens from:
- Flywoo: https://oscarliang.com/product-w8zo
- AliExpress: https://s.click.aliexpress.com/e/_c4aUAsMx
There are two versions, you can get the modified camera that comes with the wide angle lens installed (camera set), or you can just get the DIY kit and modify your own O4 camera (lens set). Personally I prefer the modified camera set because modifying your own O4 is quite time consuming and risky.
Why a Wide-Angle Lens Is So Important on the DJI O4
For FPV flying, FOV (field of view) isn’t just about aesthetics—it directly affects how confident and comfortable you feel in the air.
With the stock O4 lens:
- The image feels zoomed and restrictive
- Close-proximity flying is harder
- Stabilized footage looks even more cropped
A wider FOV gives you:
- Better spatial awareness
- A more natural FPV “speed feel”
- Stabilized footage that’s easier to watch
Flywoo’s wide-angle lens expands the FOV of O4 camera from 117° to 155°, which is a massive improvement.
A Quick Look Back: The Old Clip-On Adapter
Flywoo previously released a clip-on wide-angle adapter, which I reviewed earlier. While it did improve the FOV significantly, it came with a few drawbacks:
- Reflections and lens flare from stacking optics
- Vignetting in the corners caused by the adapter
- Slight softness and loss of clarity near the edges
It was a step in the right direction, but clearly a compromise.
The new version is a complete redesign, and it fixes almost all of those issues.
What’s New With the Flywoo O4 Wide Angle Lens
This new lens is not just an add-on—it’s a proper lens replacement designed specifically for the DJI O4 Lite camera (not the O4 Pro).
Key improvements include:
- More professional looking design and build quality
- Less vignetting
- Sharper image
- Less glare and internal reflections
- Proper Gyroflow support via custom lens profiles
Most importantly, the image finally feels wide, immersive, and natural, especially for FPV flying.
Weights are nearly identical so the main advantage is just image improvement and build quality.
Left: Old Version; Right: New Version (Weight including sensor board)
Image Quality
I tested the new wide angle lens on the Firefly18 1S, check out some footage here:
Compared to the stock O4 lens, the increase in FOV is significant when using the new Flywoo Wide Angle Lens. However it’s clear that it’s not as wide as the previous clip-on lens, so I think the actual FOV is slightly less than 155°. But the improvement is still massive.
Left: Old version; Right: New version
There is no more adapter edges appearing in the image and no corner blur. Clarity and sharpness are also as good as the original O4 lens, if not better. Everything looks very clean and sharp. Lens glare and reflection are also massively reduced.
Stabilization and Gyroflow Support
To use stabilization properly, it’s highly recommended to use Flywoo’s custom lens profiles in Gyroflow. These are available for both 16:9 and 4:3 aspect ratios. It also works without custom lens profile but the image might look warped during yaw movements.
Buying Options: DIY vs Pre-Modified Camera
Flywoo offers this lens in multiple configurations, which is important depending on your skill level.
1. Pre-Modified Camera (Recommended)
This version comes with an O4 camera that has the wide-angle lens installed out of the box
This is by far the easiest and safest option, and it’s the one I recommend for most pilots. Modifying the O4 camera is not very beginner-friendly.
However, with any non-official O4 camera, you will always get a red warning in the corner when flying (“camera calibration error”). It’s nothing to worry about, the camera is fully functional as I’ve tested.
2. DIY Lens Kit
You can modify your own O4 camera using the DIY kit:
- Remove the image sensor board from the original housing
- Glue the image sensor to the new housing,
- Adjust focus manually
The process is a bit harder and you could damage the camera if not being careful. Detailed instructions can be found here.
Mounting Options and Compatibility
The wide angle lens housing is 14mm wide, identical to the original O4 Lite camera. The distance between the two mounting holes is also the same, however, they use different screws:
- The original O4 Lite uses M2 self-tapping screws
- Flywoo uses M1.4 screws
Left: Flywoo Wide Angle Lens Housing; Right: Original O4 Housing
Adapters are also included to support other mounting:
- 18mm adapter (supports Flywoo’s BNF drones. With washers, it should also work in 19mm micro analog camera mounts)
- 20mm adapter (supports DJI O4 Pro and O3 mounts)
One issue though, Flywoo needs to pay more attention in quality control: my O4 Pro adapter came defective (one side is glued the wrong way).
Installation
To replace the original O4 camera, you need to remove the glue on the connector first.
Connect the MIPI cable to the wide angle camera using the included adapter
That’s it.
To use either the 18mm or 20mm adapters, secure the 4 screws on the sides.
One important note: if you’re upgrading a Flywoo Firefly16 or Firefly18 1S, you’ll likely need the updated canopy designed for the new lens.
ND Filter
Flywoo also provides a brand new clip-on ND filter that attaches cleanly to the front of the lens, which is a nice bonus for cinematic flying. Get it here: https://oscarliang.com/product-kix0
UV, ND8, ND16 and ND32 are available. Note that these filters only support this wide angle lens and don’t work on any other cameras at the moment.
Learn more about how to using ND filters: https://oscarliang.com/nd-filter-fpv/
Camera Calibration Error (Should You Worry?)
As mentioned, any aftermarket O4 camera will give you this warning “Camera calibration error” in your goggles (it’s there all the time). But in my testing, the camera worked absolutely fine and I didn’t notice anything wrong apart from the annoying warning, so I wouldn’t worry about it.
Final Verdict: Is the Flywoo O4 Wide Angle Lens Worth It?
Absolutely yes.
This new Flywoo wide-angle lens is a massive improvement over the stock DJI O4 lens. Not only it offers a much more usable field of view without compromising clarity, it also provides more mounting options thanks to the adapters. It doesn’t magically turn the O4 Lite into an O4 Pro—but it gets it much closer. I genuinely feel this is how the O4 camera should have come from DJI in the first place.
If you fly DJI O4 Lite and care about immersive FPV footage, this upgrade is very easy to recommend.
20 comments
Yep. If you get the complete Flywoo Lite O4 Wide, pre-assembled, there is no calibration error warning. If you modify the O4 Lite cam yourself using the Flywoo wide ‘kit’, you will get the error.
do you have the link to the flywoo wide lens replacement? I’m not sure which it is on their website. very confusing.
if you just want the lens and replace your own O4 yourself, this is the kit: https://flywoo.net/products/flywoo-o4-wide-lens-set?source_type=sales_plugin_af&slt=sales_plugin_af&referral_code=ULWDH0Y41UJ1
If you want the O4 camera module with the wide angle lens, here is the page: https://flywoo.net/products/flywoo-o4-wide-camera-set?source_type=sales_plugin_af&slt=sales_plugin_af&referral_code=ULWDH0Y41UJ1
Great work here however if you could perhaps provide links to any good canopy which still look sexy and actually protect camera lens without prop in view for flywoo o4 lite camera upgrade as example 😅 meteor 75pro would be sweet, bless
Hey Oscar, do you know if these lens can take O4 pro filters? Or just the flywoo filter set?
They only take Flywoo filter sets.
I bought the FlyLens 85 with the new wide camera preinstalled. Unfortunately the camera appears out of focus right out of the box. Is there a fix for this or did I just get a bad camera?
You should be able to readjust focus, they glue the lens in place so you probably need a hot air gun to heat up the lens in order to loosen it. Anyway it’s not going to be an easy process.
Maybe contact Flywoo and see if they are willing to replace it since it came defective and not your fault.
Can share with me the good video setting i can used for the goggle?
Here are my settings: https://oscarliang.com/how-to-setup-dji-o4-lite/#Best-O4-Settings
After changing the camera, it is normal for the goggles to display a “Calibration error” warning, because they are initially registered as a pair with the VTx. This warning can be easily removed. Power on the drone from the battery or just power on your VTx via the FC. Connect the VTX to a laptop/computer. Start “DJI Assistant 2” and you will be asked to activate it. Click “Activate later”. You will then be redirected to another page where a calibration section will appear, click “calibrate”, and you’re done.
only works if the camera is from DJI not Flywoo
Flywoo get their cameras from DJI. The “Calibration error” should be the same with the O3 when you replace the camera. The re-calibration “should” work. It’s how you repair the Air Unit if the camera broken in a crash, you replace the camera. Perhaps you need a correct version of DJI Assistant 2? Unless DJI decide if you break the camera you have to replace the whole unit so they remove the camera re-calibration and that’s greedy. But who knows, corporate greedy knows no bound. You already have to switch your goggles very few years if you want to use the newer stuffs.
Regarding calibration error I read there is possibility to remove just by performing calibration process in DJI assistant.
try putting that on a 65mm whoop XD
i think it’s good dji released the smaller FOV but smaller and lighter lens
nobody would have bothered to develop a lens like that but now we have both options
I think it’s too heavy for 65mm whoops. The o4 air unit is already a bit too much, let alone adding another 6, 7 grams.
Great article, the only question- if I use O4 Wide Angle Lens- would I see that annoying “Camera calibration error” message?
Thanks:)
If you use your own O4, then you shouldn’t get the error. It only appears on aftermarket cameras.
I bought two of the Flywoo pre-made O4 Lite cameras, already connected to the VTX boards as kits, all done by Flywoo, ready to install. In my goggles 2 I do not get a red calibration error message. This has to mean that the cameras are DJI originals, and Flywoo modded them with their wide lens. I have one of them in a 3″ Colibri frame with a Goku F405 FC running 2S and 1202 8420 kV motors. It works very well. I am experimenting with 2.5″ versus 3″ props to see which size performs better. This is a nice little quad.
Yep. If you get the complete Flywoo Lite O4 Wide, pre-assembled, there is no calibration error warning. If you modify the O4 Lite cam yourself using the Flywoo wide ‘kit’, you will get the error.