High-performance optics for professional CCTV installations. The Hikvision TV0550D-4MPIR offers a versatile 5–50 mm zoom range with DC auto-iris control, tailored for 4-megapixel cameras and CS-mount systems. Designed with IR correction, wide coverage and durable build, it is ideal for modern security setups across South Africa.

Why this lens makes a difference

Fixed lenses often limit your coverage and image clarity. This varifocal lens allows you to adjust framing on site — from wide area monitoring to tighter detail capture — while the auto-iris maintains consistent exposure under changing light conditions. For system integrators and serious users, that means better footage and fewer compromises.

Features & benefits

• Supports up to 4 MP resolution for improved image detail and clarity. 
• 5-50 mm focal length — great flexibility from wide field of view to mid-telephoto. 
• DC auto-iris for real-time exposure control in varying lighting environments. 
• CS-mount standard fitting – compatible with many CCTV cameras (use adapter if required). 
• IR-corrected optics and wide sensor format support: covers up to Ø6.5 mm (1/2.7″) sensors. 
• Compact dimensions (approx. Φ40 mm × 72.72 mm) and light weight (~177 g) – simpler to conceal or integrate. 
• Operating temperature range: -20 °C to +60 °C – suited to South African indoor installations. 

Technical specifications at a glance

• Model: TV0550D-4MPIR
• Resolution support: 4 Megapixels
• Focal length: 5-50 mm
• Aperture / F-number: F1.6-C
• Mount type: CS-mount (12.5 mm flange back length) 
• Max. image format: Ø6.5 mm (1/2.7″) 
• Minimum object distance (M.O.D): 0.1 m 
• Field of view (approx.): Diagonal: 66.7°–7.7° (for 1/2.8″); Horizontal: 53.5°–6.2°; Vertical: 40.2°–4.6° 
• Dimensions: Φ40 mm × 72.72 mm 
• Weight: ≈ 177 g 
• Operating temperature: -20 °C to +60 °C 

Ideal for these environments

• Retail outlets, offices and property entrances where surveillance clarity matters.
• Corridors or access-ways where variable zoom is needed from broad coverage to closer detail.
• Upgrades for existing 4 MP CCTV systems where the original lens limits performance.
• Installers needing reliable optics for commercial builds in South Africa.

Installation & integration tips

• Ensure camera sensor spec matches (1/2.7″ or 1/3″) to avoid vignetting or poor coverage.
• Set live-view feed and adjust zoom and focus for optimal framing before final locking screws.
• Use a compatible auto-iris driver or camera input to fully benefit from DC auto-iris; otherwise expect manual iris behaviour.
• Lock zoom/focus screws after calibration to avoid drift from vibration or tampering.
• For outdoor setups, mount inside a weather-proof housing and keep lens clean using a micro-fibre cloth only.

Better optics mean better footage.

If you’re serious about surveillance performance, the TV0550D-4MPIR gives you control over field-of-view, exposure and clarity. Give your system the upgrade it deserves and monitor with confidence.

Short product blurb (for collection pages): Hikvision TV0550D-4MPIR — 4MP varifocal auto-iris lens (5–50 mm, CS-mount) for professional CCTV systems.