This describes the amount of visible light that can pass through an optical system and is expressed as a percentage. The objective lens diameter specifies how much light can enter the optics. This makes it a key factor in an instrument’s performance, for example, in twilight. The bigger the objective lens diameter, the more light the objective lens can capture. The darker the surroundings, the larger the objective lens diameter needs to be. Check the precise product name as the number after the ‘x’ specifies the objective lens diameter in millimeters. A device with a suffix of 2-16x50, for example, has an objective lens with a diameter of 50 mm.
The illuminated Z6i 1.7-10x42 L is ideal for hunting. Its slim design makes it the perfect fit for traditional firearms, as well as for still hunting or mountain hunting.