Hikvision 8 MP AcuSense Fixed Bullet Network Camera 6 mm DS-2CD3T86G2-4IS

This is the 6 mm half of the DS-2CD3T86G2-4IS pair: an 8 MP fixed bullet from Hikvision’s 3-Series network range, with AcuSense classification and the -S suffix that conventionally denotes audio and alarm terminals. It is identical to its shorter-lens twin in every respect but one — the glass in front of the sensor — and that is the whole reason to choose between them.

A fixed-lens camera is bought by focal length, not by feature list. The longer 6 mm lens gives a narrower cone of view and spreads the same 8 MP across less ground, so a face at the gate lands bigger in the frame. The trade is blunt: what falls outside that cone is not covered thinly, it is covered by nothing.

Where it fits

It belongs where the subject sits at a distance and the width of interest is genuinely narrow: one gate lane rather than the whole forecourt, an approach road viewed along its length, a loading bay door, a fence run seen end-on. It is also the right answer when the camera must sit further back than you would like, since reach buys back the detail the standoff costs.

The method takes ten minutes. Stand at the mounting point, look down the run, and decide what must be inside the frame at the far end: the plate, the door, the third bay along. If that list sits comfortably in a narrow frame, take the 6 mm. If you are already losing the pavement either side, quote the wider one — the 4 mm version of this same camera trades reach for width. On a fixed-lens camera the lens is the one decision you cannot revisit without a ladder and a new camera.

Before you order — three things to confirm

• Confirm the lens before you order. Both variants share the model code, so a purchase order reading only DS-2CD3T86G2-4IS is ambiguous. Quote the 6 mm line explicitly and check the carton at goods-in, not up the ladder.
• Confirm the terminals you are designing around. The -S suffix conventionally denotes audio and alarm terminals. If an input, a relay or a microphone is in the design, confirm the terminal set on the current revision datasheet and allow for the extra cabling.
• Confirm the recorder can take 8 MP on that channel. Check free channels, throughput headroom and promised retention before adding an 8 MP stream to an NVR already close to full.

Technical specifications

• Manufacturer: Hikvision
• Model: DS-2CD3T86G2-4IS
• Image Sensor: 1/1.8″ Progressive Scan CMOS
• Max. Resolution: 3840 × 2160
• Day & Night: IR cut filter
• Min. Illumination: Color: 0.003 Lux @ (F1.6, AGC ON), B/W: 0 Lux with IR
• Angle Adjustment: Pan: 0° to 360°, tilt: 0° to 90°, rotate: 0° to 360°
• Shutter Time: 1/3 s to 1/100,000 s
• Focal Length & FOV: 2.8 mm, horizontal FOV 108°, vertical FOV 53°, diagonal FOV 133°; 4 mm, horizontal FOV 87°, vertical FOV 46°, diagonal FOV 103°; 6 mm, horizontal FOV 60°, vertical…
• Lens Type: Fixed focal lens, 2.8, 4, 6, and 12 mm optional
• Lens Mount: M12
• Iris Type: Fixed
• Aperture: F1.6
• Supplement Light Type: IR
• Supplement Light Range: Up to 90 m
• Smart Supplement Light: Yes
• IR Wavelength: 850 nm
• Main Stream: 50 Hz: 25 fps (3840 × 2160, 3200 × 1800, 2688 × 1520, 1920 × 1080, 1280 × 720); 60 Hz: 24 fps (3840 × 2160); 30 fps (3200 × 1800, 2688 × 1520, 1920 × 1080, 1280 × 720)
• Sub-Stream: 50 Hz: 25 fps (1280 × 720, 640 × 480, 640 × 360); 60 Hz: 30 fps (1280 × 720, 640 × 480, 640 × 360)
• Third Stream: 50 Hz: 10 fps (1920 × 1080, 1280 × 720, 640 × 480, 640 × 360); 60 Hz: 10 fps (1920 × 1080, 1280 × 720, 640 × 480, 640 × 360)
• Fourth Stream: 50 Hz: 10 fps (1280 × 720, 640 × 480, 640 × 360); 60 Hz: 10 fps (1280 × 720, 640 × 480, 640 × 360)
• Video Compression: Main stream: H.265/H.264/H.264+/H.265+,; Sub-stream: H.265/H.264/MJPEG,; Third stream: H.265/H.264,; Fourth stream: H.265/H.264/MJPEG
• Video Bit Rate: 32 Kbps to 16 Mbps
• Bit Rate Control: CBR, VBR
• Scalable Video Coding (SVC): H.264 and H.265 encoding
• Region of Interest (ROI): 5 fixed regions for main stream and sub-stream
• Target Cropping: Yes
• Audio Type: Mono sound
• Audio Bit Rate: 64 Kbps (G.711ulaw/G.711alaw)/16 Kbps (G.722.1)/16 Kbps (G.726)/32 to 192 Kbps (MP2L2)/8 to 320 Kbps (MP3)/16 to 64 Kbps (AAC-LC)
• Audio Sampling Rate: 8 kHz/16 kHz/32 kHz/44.1 kHz/48 kHz
• Environment Noise Filtering: Yes
• Audio Compression: G.711/G.722.1/G.726/MP2L2/PCM/MP3/AAC-LC

Figures from Hikvision’s published datasheet. We confirm the revision in stock when we quote.

Compatibility

A standard Hikvision network camera that pairs normally with a Hikvision NVR and the usual management and remote viewing platforms. Where a mixed-brand VMS is involved, confirm the integration profile and analytics event mapping against the firmware shipped, because classification events most often arrive as plain motion in third-party software.

What’s in the box

Packaging contents vary by production revision, so we confirm what ships with your unit on the order rather than listing it here. Treat brackets, adaptors, power supplies and cabling as separate line items unless the quotation says otherwise.

Common questions

Why are two products listed under the same model code?
Because they are two lens variants of one model. This page is the 6 mm, the other the 4 mm, and everything else matches — which is why the lens must be stated on the order.

If the framing is wrong once it is up, can the lens be changed?
No. Correcting the view means moving the camera or swapping the unit for the other focal length. Where a position may need reframing later, specify a motorised-lens camera instead.

Does AcuSense mean I can stop tuning detection zones?
It means you tune fewer of them. Classification filters out most of what used to trigger a perimeter zone, but framing still governs the result, and a longer lens puts more of the target inside the frame.

Genuine Hikvision from the authorized Hikvision agent in Egypt, official manufacturer warranty of 1 to 5 years depending on the product, delivery across Egypt, and professional installation in Cairo & Giza, priced after a site assessment. Prices are given on request — press Get a Quote on this page or call 16454.