In this review of the Caddx Polar FPV camera, we will be comparing its image quality to other existing DJI FPV system compatible cameras such as the Nebula Nano, Nebula Pro and Runcam MIPI. Thanks to Caddx for sending the Polar in for testing.
Where to Buy?
Caddx Polar Camera Only:
Polar + Vista Combo:
Specs and Features
The Caddx Polar is known for its excellent low light performance. And it actually offers great image in day light too.
It’s fully compatible with both DJI full size Air Unit, and Caddx Vista VTX. See this post for instructions how to swap cameras.
- Image Sensor: 1/1.8″ Inch 2.3Mega starlight sensor
- Dimensions: 24mm*19mm*19mm
- Min.Latency: 720p/60fps<32ms
- FOV: 162°(D); 138°(H); 75°(V)
- Min. Illumination: 0.00003Lux
- LENS: F/1.6 & 8M
- Color: Brown /Silver
- Aspect Ratio: 16:9
- Weight: 9g
To be honest I don’t really feel any extra latency from the Polar, it feels just like other DJI compatible cameras I have tried. Not having the 120FPS support might have an impact on latency but it’s really not an issue to my flying, it only takes a couple of flights to get used to.
I will be comparing the Caddx Polar to the Nebula Nano, Nebula Pro and Runcam MIPI side by side.
The Nebula Pro probably has the most neutral white balance and saturation. All other cameras are quite heavy on contrast as well, so you don’t get as much detail in the shadow. Also, because the Nebula Pro uses the full 4:3 image sensor, you get a much wider vertical field of view (FOV) which can be helpful when flying through small gaps and spaces.
When it comes to WDR (wide dynamic range), the Polar, MIPI and Nebula Nano seem to perform slightly better in this scenario.
When it comes to image detail and sharpness, I like the Polar the most.
And this is where the Polar shines – in low light… :D I tested them just after the sun set with less than a minute apart between testing each camera.
While the Nebula Nano struggled to see, the Nebula Pro simply couldn’t see anything at all. Interestingly both the Caddx Polar and Runcam MIPI still get a flyable image, but the Polar has a slight edge over the MIPI, as you can see there’s much less noise.
The Caddx Polar is a well balanced camera and has much better image quality than the Nebula Nano. It’s an alternative to the Caddx Nebula Pro as it has been out of stock for quite some time now due to “chip shortage”, and it will probably stay that way for the next few months at least.
To sum it up:
- Day flying – Nebula Pro
- Night flying & Day flying Alternative – Polar / MIPI
- Micro builds – Nebula Nano