Formatt Hitech Firecrest Ultra 77mm Neutral Density 5.4 (18 Stop)

Formatt Hitech Firecrest Ultra 77mm Neutral Density 5.4 (18 Stop) | Create dramatically longer daylight exposures

The defining choice here is a 5.4 neutral-density rating, equal to 18 stops of light reduction. That heavy cut lets you use much longer shutter times in bright conditions, opening up effects that would otherwise need very small apertures or dimmer light. The Firecrest Ultra is for photographers who want moving water, clouds or passing people to blur while the rest of the scene stays composed. It’s also useful when you want a slower shutter speed in daylight without changing your intended aperture. This is a specialised filter, rather than an everyday exposure adjustment: an 18-stop reduction calls for deliberate exposure planning and a scene where long movement blur is the point. The 77mm size makes it relevant to lenses with a matching filter thread. If long exposures are part of your landscape or architectural work, this filter gives you a substantial, clearly defined reduction to work with.

Planning an 18-stop exposure

Compose and focus before adding such a strong reduction, then meter without the filter and extend the shutter time by 18 stops. For example, a base exposure of 1/250 sec becomes roughly 17 minutes 29 seconds at the same aperture and ISO. That kind of exposure can smooth moving water or turn drifting clouds into streaks, provided there’s enough movement in the scene. It’s a considered setup, not a quick filter swap for changing light; allow time for the exposure and keep the framing steady throughout.

Technical Specifications

• Filter diameter: 77 mm
• Filter density: 5.4
• Light reduction: 18 stops