ATR2110C

ATR2110C Deep Sky Cooled Color Camera

ATR2110C is a research-grade astronomy camera designed specifically for astrophotography. Featuring the Sony IMX411 full-frame back-illuminated sensor with large image area (35.9mm diagonal) and large pixel size (4.5μm), it's suitable for night sky live broadcasting, meteor monitoring, and deep-sky photography. With cooled CMOS sensor, ultra-low readout noise (0.4-5.01e-), HCG/LCG/HDR modes, and zero amp-glow technology, its extraordinary performance will give you a great astrophotography experience.

Important: All DSO Cooled Cameras need to be connected to an external 11-14V power supply. We recommend using the included power adapter or a lithium-ion battery with stable output of 11-14V.

Sensor Information

Sony IMX411 Full-Frame Back-Illuminated CMOS Sensor

ATR2110C features the Sony IMX411 with full-frame optical format and back-illuminated (BSI) technology. The large image area, large pixel size (4.5μm), and high sensitivity make it ideal for a wide range of astrophotography applications.

Resolution: 9504 × 4440 (42MP)
Pixel Size: 4.5μm × 4.5μm
Image Area: 42.8mm × 20.0mm
Diagonal: 47.3mm (Full Frame 35mm equivalent)
G Sensitivity: 120000 mV/Lux·s @HCG, 10900 mV/Lux·s @LCG

Spectral Response (QE Curve)

The sensor achieves exceptional quantum efficiency with peak QE >89%, optimized for capturing faint deep-sky objects across the visible spectrum.

Key Features

42 MP

Resolution

9504 × 4440

4.5 μm

Pixel Size

Full-frame format

12-bit

ADC

72 dB DR

0.4 e⁻

Read Noise

HCG mode

17 ke⁻

Full Well

LCG mode

512 MB

DDR3 Buffer

Stable transfer

ΔT 42°C

Cooling

Below ambient

Zero

Amp-Glow

Clean darks

12-bit ADC and ROI Support

ATR2110C features built-in 12-bit ADC with 12/8-bit output modes for hardware binning and smaller resolutions. The camera supports hardware ROI (Region of Interest), where smaller ROI size results in higher frame rates.

Full Resolution: 9504×4440 @ 85 FPS (LCG) / 40 FPS (HCG) in 12-bit USB3.0
Half Resolution: 4752×2220 @ 240 FPS (LCG) / 80 FPS (HCG) in 12-bit USB3.0
High Speed Mode: Up to 120 FPS at full resolution in 8-bit LCG mode

512MB DDR3 Memory Buffer

ATR2110C camera has a 512MB (4Gb) DDR3 ultra-fast memory buffer to ensure stable image transmission, reducing the burden on your computer's transmission system. The buffer helps maintain data transmission stability and effectively reduces amp-glow by allowing temporary image data storage without immediate transfer.

HCG/LCG/HDR Mode Switching

ATR2110C supports three conversion gain modes to optimize performance for different imaging scenarios:

HCG (High Conversion Gain): Ultra-low read noise (0.4-0.61e-) for faint deep-sky objects
LCG (Low Conversion Gain): Higher full well capacity (17ke-) for brighter targets
HDR (High Dynamic Range): Extended dynamic range for challenging scenes

Binning Support

ATR2110C supports both digital binning (1×1 to 8×8 in stacking or averaging method) and hardware binning (1×1 to 2×2 in averaging method). Hardware pixel binning provides much faster performance than software binning.

Zero Amp-Glow Technology

ATR2110C has been carefully designed to achieve zero amp-glow photo shooting. This not only greatly reduces internal glow generation but also effectively suppresses external light interference. It enhances camera stability and durability, ensuring sharper, cleaner images in both long and high exposure modes.

With Amp-Glow (competitor camera)

Zero Amp-Glow (ATR2110C)

Comparison images taken at 20°C with 5-minute exposure time. ATR2110C shows zero amp-glow.

Cooling System

Two-Stage TEC Cooling with Precise Temperature Regulation

ATR2110C features a two-stage Thermoelectric Cooling (TEC) system with controllable fan for heat dissipation. The cooling system allows the sensor to operate at temperatures up to 42°C below ambient under long exposures (>1s), with effective cooling down to -35°C below ambient under short exposures.

PID Temperature Control

The TEC system uses advanced PID algorithm for precise temperature regulation toward the target temperature with ±0.1°C deviation. This ensures stable camera performance and superior image quality throughout long imaging sessions.

Anti-Dew Technology

ATR2110C adopts advanced anti-dew technology with a heating function consuming about 5 watts (can be turned off via software). The dew heater at the protection window has 4 adjustable levels to prevent condensation during cold night imaging.

Power Requirement: The camera must be powered only by DC 12V 3A power source. USB3.0 no longer works as a power source but only as a data communication method due to the higher power consumption of the sensor and cooling system.

Performance Analysis

Camera performance can be evaluated with e-/ADU, Read Noise, Full Well, and Dynamic Range. All following data were acquired in SharpCap with ASCOM driver at -10°C sensor temperature.

HCG Mode Performance

High Conversion Gain mode optimized for low-light deep-sky imaging with minimal read noise.

Full resolution: 9504 × 4440
RAW 12-bit mode
Temperature: -10°C
Read Noise: 0.4-0.61e⁻ (ultra-low noise)
Dynamic Range: 10.98-11.63 stops

LCG Mode Performance

Low Conversion Gain mode provides higher full well capacity for imaging brighter objects.

Full resolution: 9504 × 4440
RAW 12-bit mode
Temperature: -10°C
Full Well: 7.5-17.2ke⁻ (high capacity)
Dynamic Range: 11 stops (linear mode)

HDR Mode Performance

High Dynamic Range mode extends the camera's capability to capture scenes with extreme contrast.

Full resolution: 9504 × 4440
RAW 12-bit mode
Temperature: -10°C
Extended dynamic range for challenging imaging scenarios

Technical Specifications

Sensor	Sony IMX411 Color BSI CMOS
Resolution	9504 × 4440 (42MP)
Pixel Size	4.5μm × 4.5μm
Image Area	42.8mm × 20.0mm
Optical Format	47.3mm diagonal (Full Frame equivalent)
ADC	12-bit
Dynamic Range	72 dB (Linear Mode)
Read Noise	0.4-5.01e⁻ (mode dependent)
Full Well	17ke⁻ (LCG mode)
QE Peak	>89%
SNR Max	50 dB
DDR3 Buffer	512MB (4Gb)
Cooling	Two-stage TEC, -35°C (short exp) / -42°C (long exp) below ambient
Temperature Control	±0.1°C precision with PID algorithm
Max Exposure	0.1ms - 3600s (1 hour)
Shutter Type	Rolling shutter
Interface	USB 3.0 / USB 2.0
Power Supply	DC 12V / 3.3A
Protect Window	IR-cut filter (color version)
Spectral Range	380-690nm (with IR-cut filter)
Back Focus Distance	17.5mm
Dimensions	Ø80mm × 107.1mm height
Weight	0.577kg

Dimensions & Interfaces

Camera Dimensions and Mount

ATR2110C features a compact cylindrical design with M42×0.75mm female thread mount, allowing direct connection to telescopes or use with various adapters.

Diameter: Ø80mm
Height: 107.1mm
Mount: M42F×0.75mm

Camera Outline and Interface

1. Protective window (IR-cut filter for color camera)
2. M42F × 0.75 thread
3. Thermal outlet / radiator
4. LED indicators (Power, System, TEC, Fan)
5. DC 12V 3A power port (5.5 × 2.1mm)
6. Air inlet
7. USB 3.0 / USB 2.0 port
8. USB 2.0 HUB for accessories

Connection with Telescope Adapters

ATR2110C can connect to telescopes with proper adapters. The back focal distance from the female flange to sensor is 17.5mm. The camera comes with M42×0.75 mount and can connect directly to telescopes with M42×0.75 thread, or use M42M-1.25" or M42M-2" adapters for telescopes with 1.25" or 2" eyepiece tubes.

Connection with Camera Lenses

ATR2110C can be used with camera lenses via appropriate adapters. Compatible with Nikon F-mount and Canon EF-mount lenses using F-M42 or EF-M42 adapters.

Electrical Connections

On the back side of ATR2110C, there are 3 connection ports: DC 12V/3A power port, USB3.0/USB2.0 port, and USB-HUB. The USB-HUB allows connection with other devices (filter wheel, guide camera) to avoid cable management mess.

Package Contents

Standard package includes:

ATR2110C camera body (M42×0.75 mount + 2" adapter)

Power adapter: AC 100-240V input, DC 12V 3.3A output

Power cable

High-Speed USB 3.0 A to B cable (1.5m)

M48-M42 extender 0mm

M42M-M42F extender 21mm

M48F-M42M extender 16.5mm

M42M adapter 12.5mm

Front cover

Back Focal Distance Reference (Color Version)

Reference diagram showing the back focal distance for various adapter configurations with the ATR2110C color camera.

ATR2110C Deep Sky Cooled Color Camera

Sensor Information