SPECIFICATIONS ------------------------------ Magnification: 10-30x Objective Lens Diameter: 50 mm Eye Relief: 15 mm Field of view at 1000 yds: 195 ft@10x Prism Type: BK-7 Lens Coating: Fully Coated Weight: 31.75 ounces Close Focus: 26 feet ***Note that this review is about Barska Gladiator 10-30x50...
Possibly the cheapest way you can get magnification as high as 30
Optically unremarkable at any magnification; Complexity makes them harder to use and prone to flaws