With front focus magnification Adjustment.Make it more convenient to operate.The scope is of Red /green reticles with 5 brightness levels；Exit Pupil：3.3mm-10mm；Field of View：10' ~ 27' at 1 ...

the power controls are at the rear of the Strikefire for easy access. The Strikefire II runs off a CR2 battery. Vortex Optics hat included, hat color may vary.

In the field of optics, coupled light sources (e.g., lasers) can influence each other, producing ... A team of physicists and engineers at the University of Colorado Boulder has discovered a new ...

After hours: January 31 at 7:06:39 PM EST ...

Space-based Earth observation (EO), in the form of long-term climate data records, has been crucial in the monitoring and quantification of slow changes in the climate system—from accumulating ...