This is not the most economical models in UV filter category, but its anti-glare treatment is very effective, especially with front light sources. The D suffix PRO1D reference ensures that the processing has been optimized for digital cameras. Its quite fine mount, a thickness of 4 mm (excluding threads), however, is not as thin as that of the series PRO1 Super (Super Slim) from the same manufacturer, but allows, as the series PRO1, screwing another filter top. In summary: Very good product, preferable from the very economic models!