This break-though technology developed by Marumi made DHG Achromat Macro filter for small product photography ideal applications include jewelry, dedicate flowers, dedicated electronics or similar subjects where detail and sharpness are critical. Other filters can provide simple magnification. Only DHG Achromat Macro filters can provide the full frame sharpness, detail and clarity that today’s demand of professional. Its ultra-low reflection coating and specially designed ring which features a low reflection satin-like finish make it an ideal compliment to the most advanced lenses.
More information on Marumi filters: (Link to Marumi International Website)