PATRONUM
PRB38 — Bullet

Technology under the hood

Spec sheets tell you what — here we explain how, and why it matters in practice.

SONY STARVIS image sensor

At the heart of the camera is a 1/2.8" SONY® STARVIS™ BSI CMOS WDR. STARVIS is Sony's flagship sensor line for security cameras. Compared to standard CMOS chips, it offers 2–3× higher sensitivity in the blue-violet and near-infrared spectra — meaning legible color images at illumination as low as 0.003 lux, the threshold where the human eye stops perceiving color.

BSI (Back-Side Illumination) architecture places the photodiodes on the top of the chip, closer to the lens. Light reaches the sensor without passing through the wiring layer — cleaner image at low light, less noise, more accurate colors in backlit scenes.

Two illumination technologies — IR by default, white light on event

The camera uses 2 × 42μ SMD ADAPTIVE IR LEDs capable of switching between infrared and white light:

IR mode — default, always on, discreet. 30 m infrared illumination is invisible to the human eye. The camera works silently, doesn't disturb neighbors, and doesn't reveal its position to intruders. Black-and-white image, but sharp and fully legible. Ideal for continuous monitoring.

140 dB WDR — handling high-contrast scenes

Wide Dynamic Range of 140 dB is among the highest classes on the market. Typical scenario: camera over an entry door. Bright sunlight outside, dark hallway inside. Without WDR you see either an overexposed exterior (and a black hallway) or a legible interior (and a blown-out sun). 140 dB WDR composes two exposures — short for highlights, long for shadows — and dynamically merges them into a single frame.

The camera also supports HLC (High Light Compensation) for suppressing intense point sources (vehicle headlights) and BLC (Back Light Compensation) for balancing backlit subjects.

H.265+ compression and independent streams

H.265+ saves up to 50% storage space compared to H.264 at the same image quality. The camera transmits multiple independent streams simultaneously:

• Primary 3840 × 2160 @ 30 fps, 3072 × 2048 @ 30 fps for NVR or SD-card recording
• Secondary 1920 × 1080 @ 30 fps, 1280 × 720 @ 30 fps for mobile viewing (saves data)
• Tertiary 1280 × 720 @ 25 fps, 720 × 480 @ 25 fps, 352 × 288 @ 25 fps for parallel upload to NAS or cloud

Record at full resolution, view at lower — no duplicated bandwidth.

SSL encryption + free P2P (no public IP needed)

All communication between camera, NVR and app runs over SSL (TLS 1.2+). Remote mobile access does not require a public IP address or router port forwarding — the camera uses P2P connection via unique serial number. The BitVision app connects directly, securely, with no network configuration. CAPTCHA protection against brute-force attacks.