Tiffen 55DY15 55mm Deep Yellow #15 Filter

The Tiffen 55mm Deep Yellow #15 filter is a classic optical accessory designed to enhance black-and-white photography by selectively absorbing blue light. When placed in front of the lens, it causes blue skies to render significantly darker on film or a monochrome digital sensor, which in turn makes white clouds stand out with much greater separation and drama. The #15 designation indicates a deeper yellow tint than the more common #8 yellow filter, meaning the contrast-boosting effect is more pronounced — ideal for landscape photographers seeking bold, graphic skies in their monochrome images.

Constructed from optical glass with a 55mm thread diameter, this filter screws directly onto compatible lenses and introduces no meaningful degradation to image sharpness. It is a simple, single-purpose tool that requires no batteries, software, or adjustments — just thread it on and compose your shot. Photographers should account for the filter's light absorption by adjusting exposure settings accordingly. For those working in the black-and-white tradition or experimenting with monochrome digital photography, the Deep Yellow #15 remains one of the most effective in-camera tools for controlling tonal contrast in skies and foliage.