Inter-M VML5-15VI Inter‑M VML5‑15VI is a manual‑iris varifocal CCTV lens designed for 1/3″ image sensors. It’s part of Inter‑M’s VML series, which includes several focal‑length ranges for security cameras. The VML5‑15VI sits in the mid‑range: flexible enough for general surveillance, but with a narrower field of view than wide‑angle lenses. A 5–15 mm manual‑zoom, manual‑focus, manual‑iris CCTV lens intended for analog or early‑generation digital security cameras. It allows installers to fine‑tune zoom, focus, and iris on‑site, making it suitable for indoor and controlled‑lighting environments. Core specifications Focal length: 5–15 mm Aperture: f/1.4 Image format: 1/3″ Iris: Manual (range 1.4 → CLOSE) Focus: Manual (NEAR ↔ FAR) Zoom: Manual (5–15 mm) Viewing angle (1/3″ sensor): Wide: 65.3° × 52.8° × 39° Tele: 23.6° × 18.8° × 14° Back focal length: 7.1–16.2 mm Minimum focusing distance: ~0.3 m Effective diameter: 24.3 mm (control), 9.5 mm (scale Specifications VML2.8-10VI VML3.5-8VI VML5-15VI VML5-50VI Focal Length (mm) 2.8-10 3.5-8 5-15 5-50 Aperture 1 : 1.8 1 : 1.4 1 : 1.4 1 : 1.7 Image Format (Inch) 1/3 1/3 1/3 1/3 Iris Control Manual Manual Manual Scale 1.8~CLOSE 1.4~CLOSE 1.4~CLOSE 1.7~CLOSE Focus Control Manual Manual Manual Scale NEAR FAR NEAR FAR NEAR FAR NEAR FAR Zoom Contro Manual Manual Manual Scale 2.8-10mm 3.5-8mm 5-15mm 5-50mm View of Angle 1/3″ Wide 104° x 83° x 62.4° 97° x 77.6° x 58.2° 65.3° x 52° x 39° Tele 36° x 28.8° x 21.6° 42° x 33.6° x 25° 23.6° x 18.8° x 14° 6.9° x 5.5° x 4.1° Back focal length 7.8-17mm 8.4-14.2mm 7.1-16.2mm 7.6-11.0mm Minimum Focusing Distance 0.3m 0.3m – 1m Effective Diameter Control Φ20.5mm Φ17.5mm Φ24.3mm Scale Φ8.8mm(Effective front lens) Φ8.8mm Φ9.5mm Φ9.0mm Dimensions 55(L) x 40(W) x 46(H) 45.3(L) x 39(W) x 45(H) 62.3(L) x 42.3(W) x 48.2(H) 61.5(L) x 44.5(W) x 50.8(H) Weight 55g 44g 75g 130g Mount CS CS CS CS