Filter SEAGULL NDX8 full neutral density screw-in filter 77mm

The SEAGULL NDX8 full neutral density screw-in filter 77mm is a solid optical accessory that reduces the amount of light entering a lens by three stops. It is a fixed-density, screw-in ND filter with a 77mm thread, intended to help photographers achieve longer shutter speeds or wider apertures in bright conditions while maintaining natural color balance and image quality. The filter is compatible with any lens that accepts 77mm filters and is suitable for use on DSLRs and mirrorless systems when compact density control is needed.

Advantages

This full neutral density filter provides a consistent three-stop reduction in exposure without introducing a color cast, allowing longer exposures and wider apertures under strong lighting. The screw-in design ensures a secure, low-profile fit on lenses with a 77mm thread and simplifies attachment and removal. The optical glass and neutral coating preserve image sharpness and contrast, supporting landscape, long-exposure, and portrait workflows that require controlled light intake and motion rendering.

Suitable for

• Landscape photography with longer exposures to smooth water and clouds
• Long-exposure urban and night scenes during daylight or bright twilight
• Portraits that require wider apertures for shallow depth of field in bright light
• Creative motion blur effects in outdoor conditions

Key specifications

• Filter type: full neutral density (ND) filter with fixed optical density
• Light reduction: approximately 3 stops (ND8 equivalent)
• Mount: screw-in filter thread
• Thread size: 77 mm
• Optical material: multi-coated optical glass (neutral transmission)
• Profile: slim/low-profile design for reduced vignetting on wide-angle lenses

How to use

Screw the SEAGULL NDX8 filter onto the front of a lens with a 77mm filter thread until it is secure but not overtightened. Compose and focus as usual; because the filter reduces light by three stops, use a tripod or image stabilization when selecting longer shutter speeds to avoid camera shake. Meter exposure using the camera’s TTL metering or manual exposure settings and compensate by adding three stops to the calculated exposure when starting from an unfiltered reading. For portrait work with wide apertures, confirm focus before applying the filter if your camera has difficulty autofocusing with reduced light.

Usage recommendations

The SEAGULL NDX8 is best used with solid tripod support for multi-second exposures and with lenses that accept a 77mm thread; check for vignetting on ultra-wide optics and consider a slim filter holder or step-up ring if needed. Store the filter in a protective case when not in use and clean with a lens-safe cloth and solution to maintain optical performance.