Otherwise, the Action 8x40s sport the same features as the rest of Nikon's Action line, namely: durable rubber-armoured coating and multi-coated eyepiece lenses.
The 8x40s' smaller objective lens diameter provides somewhat dimmer performance than 50mm objective diameter binoculars; however, the 8x40s' porro prism system provides them with an expanded field of view while their lens diameter balances dim light performance and field of view. Their durable rubber-armoured coating offers the 8x40s greater protection from general harm while also reducing dropping as it provides better grip. Additionally, the 8x40s' multi-coated eyepiece lenses reduce light loss and glare for brighter, higher-contrast images.
