Tiffen 405R25 40.5mm Red 25 Filter Photography

The Tiffen 405R25 40.5mm Red 25 Filter is a classic tool for black-and-white photographers seeking dramatic contrast control. By absorbing blue light, this medium red filter darkens blue skies significantly, making white clouds pop with striking clarity. It also enhances tonal separation between green foliage and red or warm-toned flowers, giving landscape and nature images greater depth and visual impact when shot in monochrome.

Constructed with high-quality optical glass and a precision metal mounting ring, the filter maintains image sharpness while providing consistent color absorption across the frame. Beyond standard black-and-white contrast work, the Red 25 can be used with infrared film to produce surreal, otherworldly effects or to simulate moonlit nighttime scenes when shooting in daylight. The 40.5mm thread size is suited for compact, mirrorless, or vintage lenses that use this smaller filter diameter.