B+W Macro Close Up Lens +10 49

The +10 diopter power makes it possible to explore true macro ranges without the need for an expensive special lens, in order to reproduce tiny subjects at enormous proportions (appr.1:2 to 1:1.5). Apertures of f/8 or f/11 are recommended for good corner-to-corner sharpness ...The +10 diopter power makes it possible to explore true macro ranges without the need for an expensive special lens, in order to reproduce tiny subjects at enormous proportions (appr.1:2 to 1:1.5). Apertures of f/8 or f/11 are recommended for good corner-to-corner sharpness.

Because of its great power, it is also suitable for use with digital cameras. Each glass surface is vacuum coated with one layer of Anti-Reflection coating. This single layer helps to prevent internal ghosting and reflections.

It also improves light transmission from approximately 92% (uncoated glass) to over 98%.