ToupTek SkyEye 45AC Plus Cooled Color Color Astronomy Camera
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- Upgraded Cooling: Enhanced two-stage TEC cooling reaches up to 40°C below ambient
- Larger Sensor Window: 43 x 31 mm clear aperture provides 26% more area to help reduce vignetting
- Expanded Connectivity: Integrated 5-port USB hub with 4x USB 2.0 and 1x USB 3.0 ports
- Improved Design: Redesigned structure provides greater operating stability and a more streamlined setup
- Full-Frame Sensor: Sony IMX366 color CMOS delivers 44.7MP resolution with large 4.40μm pixels
- Power adapter required and sold separately
SkyEye45AC Plus: Stronger Cooling & Wider Compatibility!
Powered by the Sony IMX366 full-frame CMOS sensor, SkyEye45AC Plus delivers an impressive 44.7MP resolution (8192 × 5460 pixels), combining outstanding image detail with excellent sensitivity for advanced deep-sky astrophotography. Featuring 4.40μm pixels, 14-bit ADC, up to 40°C below ambient cooling, optimized amp-glow suppression, and a 512MB DDR3 buffer, SkyEye45AC Plus provides stable and reliable performance for long-exposure imaging. Designed for astrophotographers seeking maximum detail, it is ideal for capturing wide-field nebulae, galaxies, and rich star fields with exceptional clarity.
Core Highlights of the SkyEye Plus
Shorter Back Focus
Every model uses an M54x0.75 female thread and includes a full-size M54 extension tube and adapter ring for a standard 55mm optical train. Removing the front adapters reduces the camera back focus to 12.5mm or 8.5mm for greater compatibility with optical systems and accessories.
Large Field of View
The Sony IMX366 back-illuminated full-frame sensor (35.9 x 23.9 mm) provides approximately 1.6x the field of view of APS-C models at the same focal length. Its 44.7 MP resolution captures expansive targets like M31 and the Veil Nebula with plenty of detail for cropping and enlargement.
Sensitivity and Resolution
The 4.40μm pixel size provides an excellent balance between photon collection efficiency and image resolution, allowing SkyEye45AC Plus to reveal faint nebular structures and fine astronomical details with excellent clarity. Combined with a peak quantum efficiency exceeding 80%, the sensor delivers strong signal performance for challenging deep-sky targets
Expanded Connectivity & Reinforced Power
The integrated 5-port USB hub (4xUSB 2.0, 1xUSB 3.0) allows direct connection of accessories such as filter wheels, guide cameras, and focusers, reducing cable clutter and simplifying setup.
The optimized power system maintains stable camera operation during continuous cooling and high accessory loads throughout an imaging session.
- Note: The SkyEye Plus camera body can operate from a 12V/3A supply. A DC 12V/5A supply is strongly recommended when using the USB hub. USB 3.0 is used only for high-speed data transfer and does not power the camera or connected accessories.
OSC or Mono: Finding the Right Fit
One-Shot Color (OSC) cameras streamline your workflow by capturing full-color images without a filter wheel, offering a fast and travel-friendly setup that is perfect for astrophotography beginners, mobile imagers, or anyone seeking high-quality results with minimal post-processing.
Monochrome (Mono) cameras deliver superior photon efficiency and pixel-level sharpness by eliminating the light loss and resolution interpolation of a Bayer matrix. Mono imaging is tailored for dedicated deep-sky astrophotographers who demand maximum sensitivity, ultimate narrowband performance (Ha, OIII, SII), and full control over composite LRGB rendering under any sky condition.
Built-in Sensor Tilt Adjustment & Convenient Calibration
The SkyEye Plus body includes three sets of precision adjustment screws, allowing the sensor plane to be aligned with the telescope focal plane without an additional accessory for more uniform stars across the field.
- Note: Avoid large adjustments. Loosen the opposing screw before turning any adjustment screw. For example, loosen the matching push screw counterclockwise before tightening a pull screw clockwise; otherwise, the mechanism may be damaged.
- The series also supports the SkyEye rear four-point sensor tilt ring. The replacement does not consume additional optical length and retains the standard 12.5mm/17.5mm back focus.
High-Speed Buffer, Stable Transfer
Featuring an onboard 512MB DDR3 buffer, the SkyEye Plus series camera ensures stable USB 3.0 data transfer, preventing frame loss and transmission-induced amp-glow. The camera supports digital pixel binning from 1x1 to 8x8 (via stacking or averaging) and hardware pixel binning from 1x1 to 3x3 (via averaging). On-sensor hardware binning provides significantly faster readout speeds and processing efficiency than software binning.
Powerful Cooling and Lower Dark Current
The camera utilizes a high-performance two-stage Thermoelectric Cooling (TEC) system. By achieving a cooling from -35°C to -42°C below ambient*, the SkyEye Plus series camera cools the sensor deeply and consistently, delivering exceptionally quiet background noise levels for long-exposure imaging.
High-Efficiency Amp-Glow Suppression
SkyEye45AC Plus is equipped with advanced amp-glow suppression technology, delivering a cleaner background and enhanced signal integrity for long-exposure deep-sky imaging. This helps astrophotographers capture faint celestial details with greater confidence and efficiency.
Note: A minimal level of residual glow may remain under certain conditions. However, it can be effectively removed through standard dark-frame calibration without affecting the final image quality.
Anti-Dew Heating
The SkyEye Plus series optical window features an integrated smart heating system that actively measures ambient temperature and humidity. It automatically applies precise heat to prevent condensation, keeping your optical path crystal clear without introducing disruptive thermal air currents.
Specifications
- Sensor: Sony IMX366 Color CMOS
- Sensor Type: Back-Illuminated CMOS
- Sensor Format: Full Frame
- Sensor Size: 35.9 x 23.9 mm
- Resolution: 44.7 MP (8192 x 5460)
- Pixel Size: 4.40 x 4.40 μm
- ADC: 14-bit
- Peak Quantum Efficiency (QE): >80%
- Full Well Capacity: Up to 73 ke⁻
- Minimum Read Noise: 0.88 e⁻ (HCG Mode)
- Amp Glow: Advanced Amp-Glow Suppression
- Cooling System: Two-Stage TEC
- Cooling Capacity: Up to 40°C below ambient
- Anti-Dew Heater: Integrated Smart Heating System
- Protective Window: IR-Cut
- Camera Thread: M54 x 0.75 Female
- Onboard Buffer: 512 MB DDR3
- Data Interface: USB 3.0 / USB 2.0
- USB Hub: 4 x USB 2.0 + 1 x USB 3.0
- Digital Binning: 1x1 to 8x8
- Hardware Binning: 1x1 to 3x3
- Power Requirement: External DC power required
Performance Analysis Charts
The SkyEye45AC Plus gives you greater control over image quality with three selectable gain modes, allowing you to optimize performance for everything from bright targets to faint deep-sky objects.
-
Native High-Bit-Depth ADC: SkyEye45AC Plus is equipped with 14bit ADC, with natural colors and delicate levels.
-
High sensitivity & High QE: The peak quantum efficiency is >80%, the spectral response is wider, the light sensitivity is more sensitive, and the ability to capture weak light signals is greatly improved.
-
HCG Mode: Reduces read noise for capturing faint targets, reaching as low as 0.88e⁻ read noise at maximum gain.
-
LCG Mode: Expands full-well capacity to help prevent overexposure and preserve detail in brighter targets.
-
Low Noise Mode: Reduces frame rate for lower read noise while maintaining high dynamic range and natural brightness and color.
Diagrams and Connection Charts
Other Information
- Country of Manufacture: China
SkyEye45AC Plus: Stronger Cooling & Wider Compatibility!
Powered by the Sony IMX366 full-frame CMOS sensor, SkyEye45AC Plus delivers an impressive 44.7MP resolution (8192 × 5460 pixels), combining outstanding image detail with excellent sensitivity for advanced deep-sky astrophotography. Featuring 4.40μm pixels, 14-bit ADC, up to 40°C below ambient cooling, optimized amp-glow suppression, and a 512MB DDR3 buffer, SkyEye45AC Plus provides stable and reliable performance for long-exposure imaging. Designed for astrophotographers seeking maximum detail, it is ideal for capturing wide-field nebulae, galaxies, and rich star fields with exceptional clarity.
Core Highlights of the SkyEye Plus
Shorter Back Focus
Every model uses an M54x0.75 female thread and includes a full-size M54 extension tube and adapter ring for a standard 55mm optical train. Removing the front adapters reduces the camera back focus to 12.5mm or 8.5mm for greater compatibility with optical systems and accessories.
Large Field of View
The Sony IMX366 back-illuminated full-frame sensor (35.9 x 23.9 mm) provides approximately 1.6x the field of view of APS-C models at the same focal length. Its 44.7 MP resolution captures expansive targets like M31 and the Veil Nebula with plenty of detail for cropping and enlargement.
Sensitivity and Resolution
The 4.40μm pixel size provides an excellent balance between photon collection efficiency and image resolution, allowing SkyEye45AC Plus to reveal faint nebular structures and fine astronomical details with excellent clarity. Combined with a peak quantum efficiency exceeding 80%, the sensor delivers strong signal performance for challenging deep-sky targets
Expanded Connectivity & Reinforced Power
The integrated 5-port USB hub (4xUSB 2.0, 1xUSB 3.0) allows direct connection of accessories such as filter wheels, guide cameras, and focusers, reducing cable clutter and simplifying setup.
The optimized power system maintains stable camera operation during continuous cooling and high accessory loads throughout an imaging session.
- Note: The SkyEye Plus camera body can operate from a 12V/3A supply. A DC 12V/5A supply is strongly recommended when using the USB hub. USB 3.0 is used only for high-speed data transfer and does not power the camera or connected accessories.
OSC or Mono: Finding the Right Fit
One-Shot Color (OSC) cameras streamline your workflow by capturing full-color images without a filter wheel, offering a fast and travel-friendly setup that is perfect for astrophotography beginners, mobile imagers, or anyone seeking high-quality results with minimal post-processing.
Monochrome (Mono) cameras deliver superior photon efficiency and pixel-level sharpness by eliminating the light loss and resolution interpolation of a Bayer matrix. Mono imaging is tailored for dedicated deep-sky astrophotographers who demand maximum sensitivity, ultimate narrowband performance (Ha, OIII, SII), and full control over composite LRGB rendering under any sky condition.
Built-in Sensor Tilt Adjustment & Convenient Calibration
The SkyEye Plus body includes three sets of precision adjustment screws, allowing the sensor plane to be aligned with the telescope focal plane without an additional accessory for more uniform stars across the field.
- Note: Avoid large adjustments. Loosen the opposing screw before turning any adjustment screw. For example, loosen the matching push screw counterclockwise before tightening a pull screw clockwise; otherwise, the mechanism may be damaged.
- The series also supports the SkyEye rear four-point sensor tilt ring. The replacement does not consume additional optical length and retains the standard 12.5mm/17.5mm back focus.
High-Speed Buffer, Stable Transfer
Featuring an onboard 512MB DDR3 buffer, the SkyEye Plus series camera ensures stable USB 3.0 data transfer, preventing frame loss and transmission-induced amp-glow. The camera supports digital pixel binning from 1x1 to 8x8 (via stacking or averaging) and hardware pixel binning from 1x1 to 3x3 (via averaging). On-sensor hardware binning provides significantly faster readout speeds and processing efficiency than software binning.
Powerful Cooling and Lower Dark Current
The camera utilizes a high-performance two-stage Thermoelectric Cooling (TEC) system. By achieving a cooling from -35°C to -42°C below ambient*, the SkyEye Plus series camera cools the sensor deeply and consistently, delivering exceptionally quiet background noise levels for long-exposure imaging.
High-Efficiency Amp-Glow Suppression
SkyEye45AC Plus is equipped with advanced amp-glow suppression technology, delivering a cleaner background and enhanced signal integrity for long-exposure deep-sky imaging. This helps astrophotographers capture faint celestial details with greater confidence and efficiency.
Note: A minimal level of residual glow may remain under certain conditions. However, it can be effectively removed through standard dark-frame calibration without affecting the final image quality.
Anti-Dew Heating
The SkyEye Plus series optical window features an integrated smart heating system that actively measures ambient temperature and humidity. It automatically applies precise heat to prevent condensation, keeping your optical path crystal clear without introducing disruptive thermal air currents.
Specifications
- Sensor: Sony IMX366 Color CMOS
- Sensor Type: Back-Illuminated CMOS
- Sensor Format: Full Frame
- Sensor Size: 35.9 x 23.9 mm
- Resolution: 44.7 MP (8192 x 5460)
- Pixel Size: 4.40 x 4.40 μm
- ADC: 14-bit
- Peak Quantum Efficiency (QE): >80%
- Full Well Capacity: Up to 73 ke⁻
- Minimum Read Noise: 0.88 e⁻ (HCG Mode)
- Amp Glow: Advanced Amp-Glow Suppression
- Cooling System: Two-Stage TEC
- Cooling Capacity: Up to 40°C below ambient
- Anti-Dew Heater: Integrated Smart Heating System
- Protective Window: IR-Cut
- Camera Thread: M54 x 0.75 Female
- Onboard Buffer: 512 MB DDR3
- Data Interface: USB 3.0 / USB 2.0
- USB Hub: 4 x USB 2.0 + 1 x USB 3.0
- Digital Binning: 1x1 to 8x8
- Hardware Binning: 1x1 to 3x3
- Power Requirement: External DC power required
Performance Analysis Charts
The SkyEye45AC Plus gives you greater control over image quality with three selectable gain modes, allowing you to optimize performance for everything from bright targets to faint deep-sky objects.
-
Native High-Bit-Depth ADC: SkyEye45AC Plus is equipped with 14bit ADC, with natural colors and delicate levels.
-
High sensitivity & High QE: The peak quantum efficiency is >80%, the spectral response is wider, the light sensitivity is more sensitive, and the ability to capture weak light signals is greatly improved.
-
HCG Mode: Reduces read noise for capturing faint targets, reaching as low as 0.88e⁻ read noise at maximum gain.
-
LCG Mode: Expands full-well capacity to help prevent overexposure and preserve detail in brighter targets.
-
Low Noise Mode: Reduces frame rate for lower read noise while maintaining high dynamic range and natural brightness and color.
Diagrams and Connection Charts
- 1x SkyEye Plus Camera
- 1x USB 3.0 Data Cable 1.5m
- 1x USB 3.0 Data Cable 0.5m
- 1x M54M-M54F 16.5mm
- 1x M54M-M54F 21mm
- 1x M54M-M48F 0mm
- 1x Camera Bag
- 1x L-Shaped Hex Key
- 12x Screw Accessory Pack
- Upgraded Cooling: Enhanced two-stage TEC cooling reaches up to 40°C below ambient
- Larger Sensor Window: 43 x 31 mm clear aperture provides 26% more area to help reduce vignetting
- Expanded Connectivity: Integrated 5-port USB hub with 4x USB 2.0 and 1x USB 3.0 ports
- Improved Design: Redesigned structure provides greater operating stability and a more streamlined setup
- Full-Frame Sensor: Sony IMX366 color CMOS delivers 44.7MP resolution with large 4.40μm pixels
- Power adapter required and sold separately
SkyEye45AC Plus: Stronger Cooling & Wider Compatibility!
Powered by the Sony IMX366 full-frame CMOS sensor, SkyEye45AC Plus delivers an impressive 44.7MP resolution (8192 × 5460 pixels), combining outstanding image detail with excellent sensitivity for advanced deep-sky astrophotography. Featuring 4.40μm pixels, 14-bit ADC, up to 40°C below ambient cooling, optimized amp-glow suppression, and a 512MB DDR3 buffer, SkyEye45AC Plus provides stable and reliable performance for long-exposure imaging. Designed for astrophotographers seeking maximum detail, it is ideal for capturing wide-field nebulae, galaxies, and rich star fields with exceptional clarity.
Core Highlights of the SkyEye Plus
Shorter Back Focus
Every model uses an M54x0.75 female thread and includes a full-size M54 extension tube and adapter ring for a standard 55mm optical train. Removing the front adapters reduces the camera back focus to 12.5mm or 8.5mm for greater compatibility with optical systems and accessories.
Large Field of View
The Sony IMX366 back-illuminated full-frame sensor (35.9 x 23.9 mm) provides approximately 1.6x the field of view of APS-C models at the same focal length. Its 44.7 MP resolution captures expansive targets like M31 and the Veil Nebula with plenty of detail for cropping and enlargement.
Sensitivity and Resolution
The 4.40μm pixel size provides an excellent balance between photon collection efficiency and image resolution, allowing SkyEye45AC Plus to reveal faint nebular structures and fine astronomical details with excellent clarity. Combined with a peak quantum efficiency exceeding 80%, the sensor delivers strong signal performance for challenging deep-sky targets
Expanded Connectivity & Reinforced Power
The integrated 5-port USB hub (4xUSB 2.0, 1xUSB 3.0) allows direct connection of accessories such as filter wheels, guide cameras, and focusers, reducing cable clutter and simplifying setup.
The optimized power system maintains stable camera operation during continuous cooling and high accessory loads throughout an imaging session.
- Note: The SkyEye Plus camera body can operate from a 12V/3A supply. A DC 12V/5A supply is strongly recommended when using the USB hub. USB 3.0 is used only for high-speed data transfer and does not power the camera or connected accessories.
OSC or Mono: Finding the Right Fit
One-Shot Color (OSC) cameras streamline your workflow by capturing full-color images without a filter wheel, offering a fast and travel-friendly setup that is perfect for astrophotography beginners, mobile imagers, or anyone seeking high-quality results with minimal post-processing.
Monochrome (Mono) cameras deliver superior photon efficiency and pixel-level sharpness by eliminating the light loss and resolution interpolation of a Bayer matrix. Mono imaging is tailored for dedicated deep-sky astrophotographers who demand maximum sensitivity, ultimate narrowband performance (Ha, OIII, SII), and full control over composite LRGB rendering under any sky condition.
Built-in Sensor Tilt Adjustment & Convenient Calibration
The SkyEye Plus body includes three sets of precision adjustment screws, allowing the sensor plane to be aligned with the telescope focal plane without an additional accessory for more uniform stars across the field.
- Note: Avoid large adjustments. Loosen the opposing screw before turning any adjustment screw. For example, loosen the matching push screw counterclockwise before tightening a pull screw clockwise; otherwise, the mechanism may be damaged.
- The series also supports the SkyEye rear four-point sensor tilt ring. The replacement does not consume additional optical length and retains the standard 12.5mm/17.5mm back focus.
High-Speed Buffer, Stable Transfer
Featuring an onboard 512MB DDR3 buffer, the SkyEye Plus series camera ensures stable USB 3.0 data transfer, preventing frame loss and transmission-induced amp-glow. The camera supports digital pixel binning from 1x1 to 8x8 (via stacking or averaging) and hardware pixel binning from 1x1 to 3x3 (via averaging). On-sensor hardware binning provides significantly faster readout speeds and processing efficiency than software binning.
Powerful Cooling and Lower Dark Current
The camera utilizes a high-performance two-stage Thermoelectric Cooling (TEC) system. By achieving a cooling from -35°C to -42°C below ambient*, the SkyEye Plus series camera cools the sensor deeply and consistently, delivering exceptionally quiet background noise levels for long-exposure imaging.
High-Efficiency Amp-Glow Suppression
SkyEye45AC Plus is equipped with advanced amp-glow suppression technology, delivering a cleaner background and enhanced signal integrity for long-exposure deep-sky imaging. This helps astrophotographers capture faint celestial details with greater confidence and efficiency.
Note: A minimal level of residual glow may remain under certain conditions. However, it can be effectively removed through standard dark-frame calibration without affecting the final image quality.
Anti-Dew Heating
The SkyEye Plus series optical window features an integrated smart heating system that actively measures ambient temperature and humidity. It automatically applies precise heat to prevent condensation, keeping your optical path crystal clear without introducing disruptive thermal air currents.
Specifications
- Sensor: Sony IMX366 Color CMOS
- Sensor Type: Back-Illuminated CMOS
- Sensor Format: Full Frame
- Sensor Size: 35.9 x 23.9 mm
- Resolution: 44.7 MP (8192 x 5460)
- Pixel Size: 4.40 x 4.40 μm
- ADC: 14-bit
- Peak Quantum Efficiency (QE): >80%
- Full Well Capacity: Up to 73 ke⁻
- Minimum Read Noise: 0.88 e⁻ (HCG Mode)
- Amp Glow: Advanced Amp-Glow Suppression
- Cooling System: Two-Stage TEC
- Cooling Capacity: Up to 40°C below ambient
- Anti-Dew Heater: Integrated Smart Heating System
- Protective Window: IR-Cut
- Camera Thread: M54 x 0.75 Female
- Onboard Buffer: 512 MB DDR3
- Data Interface: USB 3.0 / USB 2.0
- USB Hub: 4 x USB 2.0 + 1 x USB 3.0
- Digital Binning: 1x1 to 8x8
- Hardware Binning: 1x1 to 3x3
- Power Requirement: External DC power required
Performance Analysis Charts
The SkyEye45AC Plus gives you greater control over image quality with three selectable gain modes, allowing you to optimize performance for everything from bright targets to faint deep-sky objects.
-
Native High-Bit-Depth ADC: SkyEye45AC Plus is equipped with 14bit ADC, with natural colors and delicate levels.
-
High sensitivity & High QE: The peak quantum efficiency is >80%, the spectral response is wider, the light sensitivity is more sensitive, and the ability to capture weak light signals is greatly improved.
-
HCG Mode: Reduces read noise for capturing faint targets, reaching as low as 0.88e⁻ read noise at maximum gain.
-
LCG Mode: Expands full-well capacity to help prevent overexposure and preserve detail in brighter targets.
-
Low Noise Mode: Reduces frame rate for lower read noise while maintaining high dynamic range and natural brightness and color.
Diagrams and Connection Charts
Other Information
- Country of Manufacture: China
- 1x SkyEye Plus Camera
- 1x USB 3.0 Data Cable 1.5m
- 1x USB 3.0 Data Cable 0.5m
- 1x M54M-M54F 16.5mm
- 1x M54M-M54F 21mm
- 1x M54M-M48F 0mm
- 1x Camera Bag
- 1x L-Shaped Hex Key
- 12x Screw Accessory Pack
ToupTek SkyEye 45AC Plus Cooled Color Color Astronomy Camera