Compatibility first
T330 and T340 series front camera only. The T330 / T340 rear and telephoto cameras use the CPL-600; the T340 built-in infrared cabin camera does not use a CPL.
Viofo CPL Filter accessory. Magnetic front-camera CPL for the T330 / T340 series (spare or replacement — one is included with every T330 / T340).
£16.95
The CPL-700 is VIOFO's magnetic circular polarising filter for the front camera of the T330 and T340 series. It reduces windscreen and dashboard reflections and also provides a physical layer over the front lens. One is supplied in the box with every T330 and T340, so this listing is for a spare or replacement.

T330 and T340 series front camera only. The T330 / T340 rear and telephoto cameras use the CPL-600; the T340 built-in infrared cabin camera does not use a CPL.
A circular polarising lens works much like polarised sunglasses, cutting reflected light from glass, road surfaces and the vehicle interior for more vivid, saturated footage.
The CPL-700 attaches magnetically to the front of the T330 / T340 main camera. When fitting it, align the white mark on the filter with the corresponding mark on the camera, as shown in VIOFO's T330 / T340 manuals.

No. A CPL-700 is already supplied in the box with every T330 and T340. This listing is for a spare or a replacement.
No. The CPL-700 is for the T330 / T340 front camera only. The rear and telephoto cameras use the CPL-600.
No. VIOFO filter housings differ by camera. Match the CPL number to the supported camera; for example, the A329S front camera uses the CPL-200.
It can remain fitted, but a polarising filter reduces some light. If maximum low-light sensitivity is the priority, compare footage with and without it.

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