Viofo A329T: Long-Term Review

[Chuck McCoy]

@TonyM
Thanks for the clarification, and additional testing.
This whole color banding issue is blowing my mind.
I guess why I've never seen it in my test footage is because I never enabled HDR in daytime testing.
But, now moving forward I will ONLY be using HDR both day & night in all my testing.

 

[rcg530]

@TonyM @rcg530

I’m so confused.

1.) Is this “Color Banding” problem caused by software, or hardware?
Software = HDR
Hardware = Lens

2.) A329S was released May 19, 2025, (almost 1 Year ago).
Why are we just now hearing about this Color Banding problem now?

3.) Why didn’t we have this “Color Banding” problem with A329 2CH (2024)?
A329 2CH (2024)
A329S 3CH (2025)
Both use same exact Rear Camera.

When I first encountered the issue in September 2025, I thought it must be a firmware issue. I reported it to VIOFO. Eventually in January 2026, the response from VIOFO was that issue mainly relates to the rear camera lens.

The A329 2CH rear camera, the A329S prototype units, and I believe the A329S early production units had the exact same rear camera. The next A329S production batch had the updated case design for the A329S RC420 rear camera, but I believe the electronics and lens are the same.

The RC420 has the image sensor rotated 180 degrees from the older unit. The physical plastic case is a slightly different size. The CPL filter that fits on the older unit is the CPL-500 and the CPL filter that fits the revised rear camera case size is the CPL-600. There are also vent holes in the RC420 that were not present in the older unit.

 

[Harsh]

@TonyM Visually which is the closest, when comparing Viofo's telephoto to the 6,8 and 12mm lenses we have used with the M1?