SkyEye62AC

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SkyEye62AC Deep Sky Camera

Professional deep sky astrophotography camera featuring Sony IMX455 full-frame color CMOS sensor with 61-megapixel ultra-high resolution, precise temperature control, ultra-low read noise, and zero amp-glow characteristics, delivering exceptional performance for deep sky object imaging.

SkyEye62AC Deep Sky Camera Product Image

Function Description

The SkyEye62AC camera features a full-frame image sensor, precise temperature control, ultra-low read noise, and zero amp-glow characteristics, making it ideal for deep sky object photography. Its exceptional performance and versatile applications provide users with an extraordinary astrophotography experience. The camera employs a two-stage TEC cooling system capable of achieving cooling differences up to 35℃ below ambient temperature, combined with an anti-dew heating system, ensuring stable operation under various environmental conditions.

SkyEye62AC Features:

  • IMX455 Color CMOS Sensor
  • Resolution: 61 Megapixels (9568×6380)
  • 3.76μm Square Pixels
  • Full Frame (35.976mm × 23.989mm)
  • 16-bit ADC
  • 512MB DDR3 Cache
  • G Sensitivity: 484.18mV with 1/30s
  • Zero Amp-Glow
  • Ultra-Low Noise: 0.89 to 1.72 e⁻ (Low Noise Mode)
  • Supports Low Noise Mode/High Frame Rate Mode
  • Supports HCG/LCG Mode
  • Maximum SNR: 47.0 dB (Low Noise Mode)
  • Dynamic Range: 85.8 dB (Low Noise Mode)
  • Cooling Difference: 30℃ short exposure/35℃ long exposure

Core Features

61MP
Ultra-High Pixels
9568×6380 Resolution
51 ke⁻
Full Well Capacity
Up to 107ke⁻ in LCG Mode
0.89 e⁻
Ultra-Low Read Noise
Ultimate Low Noise Mode Performance
> 80%
Peak Quantum Efficiency
Excellent Photoelectric Conversion
85.8 dB
Dynamic Range
Capture More Light-Dark Details
-35℃
Cooling Difference
Two-Stage TEC Deep Cooling

Technology Advantages

Full Frame 61-Megapixel Sensor

SkyEye62AC features the Sony IMX455 sensor with 61-megapixel ultra-high resolution (9568×6380) and a full-frame size of 35.976mm × 23.989mm. The 3.76μm pixel size ensures excellent light gathering capability while maintaining high resolution. The full-frame sensor guarantees an extremely large field of view, making it the ideal choice for capturing large nebulae, galaxies, and wide-field deep sky objects.

Sony IMX455 Spectral Response Curve

The SkyEye62AC sensor has a G sensitivity of 484.18mV at 1/30s. Its quantum efficiency peak exceeds 80% and maintains excellent response throughout the visible light range. With an IR cut filter installed, its spectral response range is 380-690nm. The sensor's high quantum efficiency ensures clear image capture even in low-light conditions, making it particularly suitable for photographing faint deep sky objects.

IMX455 Spectral Sensitivity Characteristics Curve

16-bit ADC and Flexible ROI

SkyEye62AC outputs native 16-bit ADC, providing 65,536 grayscale levels capable of capturing extremely fine brightness variations. This high bit depth is crucial for deep sky photography, enabling simultaneous recording of the bright core and faint outer details of nebulae. The camera supports hardware ROI and pixel binning, with smaller ROI sizes achieving higher frame rates, making it ideal for planetary photography and guiding applications.

Frame Rates at Different Resolutions/Data Bits/Data Transfer Interfaces

Resolution 16-bit Output 8-bit Output
USB3.0 USB2.0 USB3.0 USB2.0
9568×6380 3.1 0.4 6.2 0.7
9568×6380 (Low Noise Mode) 1.9 0.4 6.2 0.7
4784×3190 9.4 1.5 18.8 2.9
3184×2124 27.8 3.3 55 6.6

Unit: Frames per Second (FPS)

512MB DDR3 Cache Technology

SkyEye62AC features 512MB (4Gb) DDR3 cache, helping maintain data transmission stability and effectively reducing amp-glow phenomena. The large capacity cache allows the camera to buffer multiple frames of image data without rushing to send data to the receiving end, which is particularly important for long exposures and high-speed continuous shooting. Cache technology also effectively prevents frame loss due to data transmission bottlenecks.

DDR3 Cache Module Diagram

Pixel Binning Technology

SkyEye62AC supports digital pixel binning from 1×1 to 8×8 (stacking or averaging methods) and hardware pixel binning from 1×1 to 3×3 (averaging method). Hardware pixel binning is much more efficient than software pixel binning. Through pixel binning, signal-to-noise ratio and sensitivity can be significantly improved at the cost of some resolution, which is particularly valuable for photographing extremely faint deep sky objects.

HCG/LCG Dual Mode Conversion Gain

SkyEye62AC supports HCG (High Conversion Gain) and LCG (Low Conversion Gain) mode switching. HCG mode optimizes low-light performance, achieving ultra-low read noise of 0.89e⁻, suitable for photographing faint deep sky objects; LCG mode provides ultra-large full well capacity up to 107ke⁻, suitable for photographing bright celestial targets. Users can flexibly switch modes according to target brightness to achieve optimal imaging results.

Zero Amp-Glow Design

SkyEye62AC is carefully designed to achieve zero amp-glow photography. Traditional CMOS cameras often produce amp-glow phenomena at image edges during long exposures, severely affecting image quality. SkyEye62AC completely eliminates amp-glow phenomena through optimized circuit design and high-quality components, producing no amp-glow even with 5-minute exposures at 20°C, ensuring pure deep sky images.

Zero Amp-Glow Comparison Image

Ultra-Low Noise Read Mode

SkyEye62AC features a dedicated low noise read mode that significantly reduces read noise by decreasing read speed. In low noise mode, read noise can be as low as 0.89-1.72 e⁻, achieving performance levels comparable to professional CCD cameras. While frame rate decreases somewhat, for deep sky long exposure photography, the signal-to-noise ratio improvement from ultra-low read noise is far more important than frame rate.

Precision Cooling System

Two-Stage TEC Deep Cooling Technology

SkyEye62AC employs a two-stage thermoelectric cooling (TEC) system with controllable electric fan-assisted heat dissipation. It can achieve cooling differences up to 30℃ below ambient temperature for short exposures and up to 35℃ below ambient temperature for long exposures. The TEC system is precisely controlled by PID algorithm, allowing temperature adjustment accuracy of 0.1°C, ensuring sensor temperature stability during the imaging process.

Two-Stage TEC Cooling System Structure Diagram

TEC Cooling Structure

Adopts two-stage semiconductor cooling chip series design, where the first stage directly cools the sensor and the second stage efficiently conducts heat to the heat dissipation system.

Anti-Dew Heating System Working Principle Diagram

Anti-Dew Heating System

The camera front end is equipped with an intelligent anti-dew heating system that automatically monitors environmental humidity and temperature, activating heating when necessary to prevent optical window condensation.

Intelligent Temperature Management

The camera has built-in multiple temperature sensors that monitor sensor temperature, ambient temperature, and heat sink temperature in real time. The intelligent temperature management system can automatically adjust cooling power and fan speed based on environmental conditions, maximizing energy efficiency and noise reduction while ensuring cooling effectiveness. Users can also manually set target temperatures through software, and the system will automatically maintain the set temperature.

High-Efficiency Heat Dissipation Design

The camera employs an optimized heat dissipation structure design, including large-area heat sinks, high-efficiency thermal conductive materials, and intelligent fan control. The heat dissipation system can quickly conduct heat generated by the TEC away, ensuring efficient operation of the cooling system. The fan uses PWM speed control, automatically adjusting speed based on actual heat dissipation needs, reducing noise while ensuring heat dissipation effectiveness.

Technical Specifications

Core Performance Parameters

Maximum Frame Rate (USB 3.0) 16-bit: 3.1 FPS @ 9568×6380
16-bit: 1.9 FPS @ 9568×6380 (Low Noise Mode)
8-bit: 6.2 FPS @ 9568×6380
8-bit: 55 FPS @ 3184×2124
Read Noise Standard Mode: 2.58 - 0.89 e⁻
Low Noise Mode: 1.72 - 0.89 e⁻
LCG Mode: 3.98 - 1.52 e⁻
Full Well Capacity 51ke⁻ (HCG Mode)
107ke⁻ (LCG Mode)
Peak Quantum Efficiency >80%
Dynamic Range 85.8 dB (Low Noise Mode)
Signal-to-Noise Ratio 47.0 dB
Exposure Time Range 0.1ms - 3600s
Gain Range 1× - 150×
Cooling Capability Short Exposure: ΔT = -30℃
Long Exposure (>1s): ΔT = -35℃

Basic Technical Specifications

Sensor Sony IMX455 Color CMOS
Image Resolution 61 Megapixels (9568×6380)
Pixel Size 3.76μm × 3.76μm
Sensor Size Full Frame (43.3mm Diagonal)
Imaging Area 35.976mm × 23.989mm
Shutter Type Rolling Shutter
ADC Bit Depth 16-bit
DDR3 Cache 512MB (4Gb)
Spectral Response Range 380-690nm (with IR Cut Filter)
Front Window Protection Glass IR Cut Filter

Interface and Physical Specifications

Data Interface USB 3.0 / USB 2.0
Camera Interface M54 × 0.75 Thread
Back Focus 17.5mm / 12.5mm (Adjustable)
USB Hub USB 2.0 Hub for Accessory Connection
Power Requirements DC 12V 3A
Dimensions Diameter 89mm × Height 107mm
Weight 713g
Cooling Method Two-Stage TEC + Fan-Assisted Heat Dissipation
Supported Systems Windows XP/Vista/7/8/10/11 (32&64-bit)
Mac OS X, Linux
SDK Support Native C/C++, C#/VB.NET, Python
Java, DirectShow, Twain, ASCOM, etc.

Multi-Mode Flexible Switching

SkyEye62AC supports HCG (High Conversion Gain), LCG (Low Conversion Gain), and low noise read mode switching. Configure these modes freely according to your imaging needs to optimize dynamic range and noise performance.

HCG Mode Performance

Camera Settings: Full Resolution, RAW 16-bit Mode, Temperature: -5℃

HCG (High Conversion Gain) mode is optimized for deep sky astrophotography. In this mode, read noise can be as low as 0.89e⁻, making it ideal for capturing faint nebulae, galaxies, and other deep sky objects. With a full well capacity of 51ke⁻ and dynamic range reaching 14.85 stops, it can simultaneously capture both the bright core and faint outer structures of celestial objects. This mode is particularly suitable for long exposure deep sky photography.

HCG Mode Performance Curve: Showing e/ADU, read noise, full well capacity, and dynamic range at different gains

LCG Mode Performance

Camera Settings: Full Resolution, RAW 16-bit Mode, Temperature: -5℃

LCG (Low Conversion Gain) mode provides larger full well capacity (107ke⁻), suitable for capturing high dynamic range celestial objects. This mode excels when photographing bright emission nebulae, planetary nebulae, or targets requiring HDR composition. Dynamic range can reach 15.43 stops, ensuring complete recording of all details from brightest to darkest. While read noise is slightly higher, the ultra-large full well capacity makes it the ideal choice for handling high-contrast scenes.

LCG Mode Performance Curve: Showing performance parameters in low conversion gain mode

Low Noise Read Mode

Optimized for extreme low-light photography

Low noise read mode minimizes read noise by reducing read speed, achieving ultra-low noise levels of 0.89-1.72e⁻. This mode is particularly suitable for photographing extremely faint deep sky objects, such as distant galaxy clusters, dark nebulae, etc. While the frame rate decreases to 1.9 FPS (16-bit), for deep sky photography requiring long exposures, the signal-to-noise ratio improvement from ultra-low read noise makes this sacrifice completely worthwhile.

Camera Interface & Dimensions

Flexible Back Focus Design

SkyEye62AC has the capability to switch back focus lengths. By removing the 5mm back focus ring from the camera's front end, the camera's occupied back focus length changes from 17.5mm to 12.5mm, effectively adapting to non-standard back focus optical systems and more flexible equipment configurations. The camera comes standard with M54×0.75 threaded interface and provides various adapter rings to accommodate different telescope systems.

Back Focus Adjustment Diagram

Sensor Tilt Adjustment

SkyEye62AC has the capability to adjust sensor tilt. Three sets of screws can be used to adjust the image sensor tilt angle to make it parallel to the telescope's primary mirror surface, with each set containing one screw for pulling back and one for pushing forward. Through professional software analysis of star shapes, users can precisely adjust the sensor plane to ensure imaging quality across the entire field of view.

Package Contents

Package Contents Overview

Standard Configuration Includes:

A Cardboard Packaging Box: L:21.9cm W:21.9cm H:13.6cm
B SkyEye62AC Camera Body (M54F×0.75 Interface)
C Power Adapter: AC 100-240V 50/60Hz, Output DC 12V 3A
D High-Speed USB 3.0 Data Cable (A-Male to B-Male Gold-Plated Connection Cable, 1.5m)
E Rubber Plug
F Hex Wrench H 2.0
G M54M-M48F 21mm Extension Tube
H M48M-M48F 16.5mm Extension Tube
I M48M-M42F Adapter Ring

Note: Actual package contents are subject to the physical product. ToupTek reserves the right to make detail adjustments without affecting product performance.