Center Image Camera Filter

Lens filter sand is a very popular camera filter with a clear polished spot at the center, so a sharp image is obtained in the center of the picture, surrounded by diffused or smoky screen. You may use spacer ring for a better result.Center image filter is a Sand filter with a clear polished spot at the center, so a sharp image is obtained in the center of the picture, surrounded by diffused or smoky screen, gradually fading towards edges.