Marshall CV420-27X 27X Optical Zoom 4K PTZ IP Camera (HEVC/SRT)

The CV420-27X is a professional PTZ IP camera built for broadcast and pro A/V environments that need clean, detailed UHD video and flexible streaming workflows. It uses an 8.5-megapixel class CMOS sensor to capture crisp video up to 3840x2160 at 59.94fps, while also supporting common HD formats for compatibility with mixed-production systems.

Designed for straightforward setup and dependable operation, the CV420-27X supports modern IP streaming and compression—ideal for live production, houses of worship, corporate AV, education, and installed systems where reliability and remote control matter. Dual-stream output and multiple transport options help you tailor quality and bandwidth for main program delivery and confidence/preview monitoring.

Key Features of the CV420-27X 4K PTZ IP Camera

• 27X Optical Zoom + 12X Digital Zoom: Reach wide establishing shots and tight close-ups without swapping lenses.
• UHD 4K Up to 59.94fps: Captures up to 3840x2160p at 59.94fps, with support for common HD formats for broadcast compatibility.
• HEVC (H.265) and H.264 Video Compression: Optimize bandwidth and storage while maintaining detailed image quality.
• SRT Streaming Support: Designed for robust, low-latency transport options when streaming over unpredictable networks.
• Dual Stream Output: Main/Sub streams plus webpage access for flexible workflows and monitoring.
• Wide-to-Tele Coverage: 60° horizontal wide angle (±5%) and a tight 3.2° horizontal tele angle (±5%) for controlled framing.
• Image Optimization Tools: Includes 3D noise reduction, WDR, backlight compensation, and flip/mirror settings.
• Extensive Presets: Store up to 256 presets for fast recall during live production.
• Professional I/O and Audio Paths: HDMI, SDI output, line in/out, and audio over HDMI/SDI and IP streams (RTSP/RTMP/SRT).
• PoE Power Option: IEEE 802.3af PoE support for simplified installs, plus 12V DC power capability.

Technical Specifications

• Sensor: 1/2.5" 8.57MP CMOS (IMX317)
• Optical Zoom: 27x
• Digital Zoom: 12x
• Angle of View (Horizontal): 60°
• Angle of View (Vertical): 35°
• Angle of View (Diagonal): 68°
• Aperture: F1.66–F4.98
• Focal Length: 5.56mm–150.29mm
• Focus Distance: Wide: 1m to ∞ / Tele: 1.5m to ∞
• Minimum Illumination: 10 lux
• Streaming / Access: Dual Stream (Main/Sub) / Webpage
• Streaming Protocols: RTSP / RTMP / RTMPS / MPEG-TS / SRT / Dante Ready
• Video Compression: HEVC (H.265) / AVC (H.264)
• Audio Compression: G.711 / AAC
• Presets: 256
• Focus System: Auto / One-Push AF / Manual
• Electronic Shutter: 1/1 to 1/10000 sec
• Exposure Control: Auto / Shutter Priority / Iris Priority / Manual
• Gain Control: Auto / Manual
• White Balance: Auto / Manual R/B Gain
• Image Processing: 3D NR / WDR / Backlight Compensation
• Flip / Mirror: Yes
• Firmware Update: Webpage operation
• Video Output Formats (HDMI): 4K: 59.94/50/29.97/25; 1080p: 59.94/50/29.97/25; 1080i: 59.94/50; 720p: 59.94/50/29.97/25
• Video Output Formats (SDI): 4K: 59.94/50/29.97/25; 1080p: 59.94/50/29.97/25; 1080i: 59.94/50; 720p: 59.94/50/29.97/25
• Streaming Output Formats: 4K: 59.94/50/29.97/25; 1080p: 59.94/50/29.97/25; 1080i: 59.94/50; 720p: 59.94/50/29.97/25; 360p: 29.97/25
• Webpage PTZ Preview: MJPEG 360p
• Audio I/O: Line In (3.5mm) x1; Line Out (3.5mm) x1; Stereo, Unbalanced
• Audio Outputs: HDMI / SDI / RTSP / RTMP / SRT
• HDMI: x1 (RGB / YUV422)
• SDI: x1
• Serial Control: RS-232 In (Mini-DIN) x1; RS-232 Out (Mini-DIN) x1
• Control Protocols: VISCA; VISCA over IP; ONVIF Profile S; HTTP CGI; HTTP API; Webpage
• Baud Rate: 9600 / 38400
• Network: RJ45 x1 (1Gbps)
• Network Protocols: DHCP, DNS, HTTP, HTTPS, IPv4, NTP, RTSP, RTCP, RTP, TCP, UDP
• Client Connections: RTSP 1080p60 up to 5 clients
• Tally Light: Yes (Red)
• Power: PoE (IEEE 802.3af) or DC 12V/3A (EIAJ Type 4)
• Power Consumption: PoE ≤19W; DC ≤17W
• Operating Temperature: 0°C to 40°C
• Operating Humidity: 10% to 90%
• Storage Temperature: -20°C to +60°C