Canon EOS 40D +10 (10x) High-Definition 2-Element 72mm Close-Up (Macro) Lens

High Definition (Beveled Design) +10 close-up lens optimized for macro work. Constructed from high-index / low-dispersion 2 element optical glass to reduce aberration and improve sharpness. Optical surfaces are fully multi-coated and feature a threaded anti-reflection coating. Screw-on 72mm mounting makes it simple to attach to the lens referenced in the title.