Camera UV Filter Calumet 67 mm Ultra Slim 24-Layer Multi-Coated

Calumet 67 mm Ultra Slim 24-Layer Multi-Coated UV camera filter is a screw-in protective and optical accessory designed for lenses with a 67 mm thread. The filter reduces ultraviolet haze and maintains image clarity while offering front-element protection. Its ultra-slim profile is engineered to minimise the risk of vignetting on wide-angle lenses while retaining a secure metal mount for reliable attachment.

Advantages

The 24-layer multi-coating improves light transmission and reduces reflections, ghosting and flare across the visible spectrum. The ultra-slim frame reduces the likelihood of mechanical vignetting on wide-angle lenses and keeps the optical centreline unobstructed. As a screw-in type filter, it provides continuous protection of the front element from dust, moisture and minor impacts while remaining compatible with lens caps and stacked filter systems where clearance permits.

Suitable for

• Outdoor and landscape photography where UV haze is present
• Travel photography requiring front-element protection
• Wide-angle lenses that are prone to vignetting with thicker filters
• General daylight shooting to improve image clarity and reduce atmospheric bluish cast

Key specifications

• Filter type: UV (ultraviolet) filter
• Diameter: 67 mm screw-in thread
• Frame profile: ultra-slim metal mount to minimise vignetting
• Coating: 24-layer multi-coating to reduce reflections and increase transmission
• Attachment: standard threaded mount compatible with 67 mm lens threads

How to use

Screw the filter gently into the front thread of a 67 mm lens until it seats securely; do not over-tighten. Use the filter on clear days to reduce ultraviolet haze and to provide continuous protection for the lens front element. When photographing with ultra-wide-angle lenses, confirm that the ultra-slim profile prevents vignetting at your chosen focal length and aperture. Clean the coated surfaces with a soft microfiber cloth and appropriate lens cleaning solution to avoid scratching or degrading the multi-coating.

Usage recommendations

Store the filter in a padded case when not in use to prevent scratches. For stacked filters or use with lens hoods, check clearance to avoid mechanical vignetting. Regularly inspect and gently clean the multi-coated surfaces to maintain optimal optical performance.