HOYA Filter 55mm Fog Filter Set Fog A & B

Fog filter set for 55mm lenses

The set includes two screw-in filters labelled Fog A and Fog B that thread onto any 55mm front thread. Fog A adds a subtle white haze while Fog B creates a denser atmospheric look, and both can be stacked for a stronger effect. They suit photographers who want in-camera mood control for landscape, portrait or creative work without relying on post-processing.

Check your lens thread before ordering

Verify that the lens you plan to use has a 55mm filter thread; the size is usually marked on the barrel or front cap with the Ø symbol. The filters reduce light transmission, so you will need to compensate with a wider aperture, slower shutter speed or higher ISO. No adapter rings or step-up rings are included in the package.

Behaviour under sustained shooting

Because the fog effect is optical rather than electronic, the intensity stays constant for as long as the filters remain on the lens. Stopping down the aperture lessens the effect progressively, while opening it up restores the full haze density. There is no warm-up period, no battery drain and no variation between frames during extended sessions.