The Cokin Center Spot filters maintain clarity and sharpness in the center of the image while softening the surrounding area. They direct the eye to the main subject and emphasize its importance, progressively softening from foreground to background. These filters enrich your images with moody over-illumination of highlights for a friendly atmosphere. This size is suitable for lenses with filter threads up to 62 mm and is recommended for focal lengths from 35 mm (based on 35 mm full frame).