Renowned throughout the world for their outstanding optical performance, the 8x42, 10x42 models have been updated to include a dielectric high-reflective multilayer prism coating, which assures a high light transmittance rate throughout the visible range, making these new models a perfectly comfortable option for low-light observations at dusk and dawn. In addition to an improved exterior design, the binoculars waterproof capability has been extended to 10 minutes and eye relief for the new Monarch 10x42 DCF has been extended to 18.5mm, 3.0mm longer than the previous model for added comfort.