VLT-3.5B Professional dental loupes / surgical loupes at a value price. This model features a preferred 3.5x magnification and a working distance of 420mm (approximately 16.53 inches), making it a top choice for dental practitioners. It provides a field of view of 60 mm, ensuring a wide viewing area. Designed for comfort, these loupes come with lightweight, durable sport glass frames and an adjustable flip-up mechanism. The 3.5x magnification enhances detail, offering a field of view of 2.3" and a depth of field of 3.15", facilitating ease of use during detailed tasks. The loupes are fitted with blue sport frames and polycarbonate lenses (non-prescription) that are safe for work environments and easy to clean. These frames, are engineered to accommodate most medium to large head sizes and shapes comfortably. It's important to note that the depth of field, field of view, and working distance may slightly vary depending on individual vision requirements.