Lens filter B&W Basic 091 Red Dark 630 MRC, 67mm thread

The B&W Basic 091 Red Dark 630 MRC, 67mm thread is a screw-in photographic filter that shifts color rendition toward a deep red (630 nm) wavelength. Designed for creative color photography and for controlling tonal separation in black-and-white imaging, this 67mm filter attaches to lenses with a matching screw thread. The filter glass carries a multi-resistant coating (MRC) to reduce internal reflections and improve surface durability while maintaining optical clarity.

Advantages

This red dark 630 filter provides a predictable color shift useful for creative effects and color correction. The 67mm screw mount ensures secure, easy attachment to compatible lenses. The multi-resistant coating helps minimize flare and reflections and protects the glass from scratches and fingerprints, extending useful life under typical photographic use.

Suitable for

• Creative color photography where increased red dominance is desired
• Black-and-white photography for stronger contrast and tonal separation
• Landscape and architectural shots requiring selective color control
• Studio and controlled-light workflows to modify color balance

Key specifications

• Optical effect: dark red filter centered at approximately 630 nm
• Filter mount: 67mm screw thread
• Coating: multi-resistant coating (MRC) to reduce reflections and improve durability
• Intended use: color modification and contrast control for photographic lenses

How to use

Screw the filter onto the front of a lens with a 67mm thread until it seats securely without over-tightening. Compose and meter the scene normally; exposure may require adjustment depending on the amount of red filtration and the shooting mode. For black-and-white work, evaluate contrast changes through the viewfinder or on a test frame and adjust exposure or development (if shooting film) to achieve the desired tonal separation. Clean the coated surfaces with a soft brush or lint-free cloth and lens cleaner designed for coated optics.

Usage recommendations

Use the B&W Basic 091 Red Dark 630 MRC on scenes where stronger red rendition improves the creative result or when increased contrast in monochrome images is required. Remove and store the filter in its case when not in use to protect the coated surfaces and avoid unnecessary vignetting on wide-angle lenses without adequate clearance.