![NiSi Swift VND Kit](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)
Stacking multiple filters can introduce vignetting when shooting with wider focal lengths. See the suggested focal lengths below to avoid vignetting:
Swift in Video Mode:
- True Color 1-5 Stops VND + 1 Swift filter = No vignetting at 18mm (Full Frame)
- True Color 1-5 Stops VND + 2 Swift filter = No vignetting at 20mm (Full Frame)
Swift in Photo Mode:
Vignetting can vary from lens to lens based on design, breathing and focus distance. These suggested focal lengths are a guide at infinity focus:
- True Color 1-5 Stops VND + 1 Swift filter = No vignetting at 20mm (Full Frame)
- True Color 1-5 Stops VND + 2 Swift filter = No vignetting at 28mm (Full Frame)