Hoya 46mm Red 25A HMC Filter

The Hoya 46mm Red 25A HMC filter is a multi-coated optical glass filter ideal for dramatically enhancing contrast in black and white photography. This professional-grade filter absorbs green and blue wavelengths whilst transmitting red light, creating striking landscape effects with dramatically darkened skies. The HMC (Hoya Multi-Coat) design minimises reflections and reduces flare and ghosting, delivering exceptional optical clarity with approximately 97% light transmission. Equally effective for colour photography when a specific colour effect is desired, or for infrared film applications.

• 46mm filter diameter with standard profile aluminium frame
• Multi-coated optical glass with 6 layers of protective coating (3 per side)
• 2.5 stop filter factor for precise exposure control
• Ideal for dramatic cloud effects, cutting through atmospheric haze, and moonlight applications
• Includes plastic storage case and 1-year manufacturer warranty