Videos tagged with Objective Lens Size

This video provides expert guidance on selecting rifle scopes, focusing on objective lens size and its relation to light gathering, and the necessity of adjustable objectives (AO) for higher magnifications. The instructor emphasizes that larger objective lenses don't inherently gather more light but facilitate entry, and that the 'light gathering' ratio (magnification x objective diameter) is a key metric. He advises against excessively large objective lenses (over 40mm) due to mounting height and weight issues, recommending that shooters can increase light gathering by simply reducing magnification. The video also details how AO is crucial for correcting parallax and focusing at higher powers (above 9x) for target shooting and varmint hunting, but is often unnecessary and adds weight for general hunting applications.