Tiffen 1A 37mm Skylight Camera Lens Filter UV Protection

The Tiffen 37mm 1A Skylight filter is built around a simple but effective premise: protect your lens at all times while providing a modest optical benefit. The Sky 1A designation indicates a filter with a faint pink tint that absorbs ultraviolet light and gently corrects the cool blue cast that naturally occurs when shooting in open shade, at high altitudes, or under overcast skies. Manufactured using Tiffen's ColorCore process — where the filter effect is sandwiched between two pieces of optical glass — the 37mm Sky 1A delivers uniform color correction across its entire surface and resists the uneven fading that can affect dye-based filters over time.

An ultra-clear multi-layer coating is applied to reduce reflections and ghosting, so the filter can remain on the lens permanently without degrading image quality. For photographers and videographers using compact cameras or smaller lenses with a 37mm thread, the Sky 1A serves as an inexpensive insurance policy against dust, moisture, fingerprints, and scratches on the front element. The warming effect is intentionally subtle — enough to take the edge off a blue cast without pushing images into unnatural territory — making it a practical all-conditions filter for everyday shooting.