55mm ND2-32 Variable ND & CPL Filter (1-5 Stop) 2 in 1 for Camera Lens, No X Spot Weather Sealed Nano-Xcel

SKU: KF01.1321

Q
How wide of a focal length can you shoot with this on a full frame camera before getting vignetting?
Answer Question
A
Hi, in wide-angle lens if on the most darkness stop , suggesting focus length is 20-24 for avoiding vignetting.