ToupTek SkyEye 24AC Plus Cooled 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 IMX410 color CMOS delivers 24MP resolution with large 5.94μm pixels
- Power adapter required and sold separately
SkyEye24 Plus: Stronger Cooling & Wider Compatibility!
The ToupTek SkyEye24AC Plus brings upgraded performance and reliability to full-frame deep-sky imaging with enhanced cooling, expanded connectivity, and a redesigned structure. Its Sony IMX410C full-frame sensor delivers 24 MP resolution with large 5.94 µm pixels and 14-bit imaging for excellent sensitivity, low noise, and detailed results. Two-stage TEC cooling reaches up to 40°C below ambient, while ultra-low read noise, zero amp-glow, and a 512 MB DDR3 buffer help maintain clean, consistent data throughout long imaging sessions.
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 55 mm optical train. Removing the front adapters reduces the camera back focus to 12.5 mm or 8.5 mm for greater compatibility with optical systems and accessories.
Large Field of View
The SkyEye24AC Plus features a 24MP Sony IMX410 full-frame color sensor with large 5.94μm pixels, delivering excellent sensitivity, full-well capacity, and image quality for capturing nebulae, galaxies, and wide-field targets.
Reduced Vignetting
The SkyEye Plus features an enlarged 43 x 31 mm sensor window, providing 26% more area to help reduce edge vignetting with fast optical systems. Color models include an IR-cut window for cleaner, more accurate color imaging.
Expanded Connectivity & Reinforced Power
The integrated 5-port USB hub (4x USB 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 512 MB 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
SkyEye24AC Plus adopts a newly upgraded TEC and active cooling system, combined with PID precise temperature control algorithm, which makes the temperature control more uniform. At the same time, the cooling temperature difference further breaks through to about 40°C, effectively suppressing thermal noise and dark current. When shooting all night long, the long exposure dark field is pure and transparent, and higher quality images can be obtained after calibration.
Zero Amp-Glow for Cleaner Long Exposures
Utilizing Sony's back-illuminated non-glow CMOS sensor effectively avoids the common glow problem of traditional front-illuminated sensors and maintains a uniform and clean background signal under high gain and long exposure conditions. Calibration is easier and post-processing is more efficient.
Four-Level 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 IMX410 Color CMOS
- Sensor Type: Back-Illuminated CMOS
- Sensor Format: Full Frame
- Sensor Size: 36.02 x 23.998 mm
- Resolution: 24 MP (6064 x 4040)
- Pixel Size: 5.94 x 5.94 μm
- ADC: 14-bit
- Peak Quantum Efficiency (QE): >80%
- Dynamic Range: 87.3 dB
- Maximum SNR: 50.2 dB
- Full Well Capacity: 104 ke⁻ (20 ke⁻ in HCG Mode)
- LCG Read Noise: 4.48–1.95 e⁻
- HCG Read Noise: 0.68–0.30 e⁻
- Gain Modes: LCG, HCG & Low Noise
- Maximum Frame Rate (USB 3.0): Up to 113 fps (8-bit mode, reduced resolution/ROI)
- Cooling System: Two-Stage TEC with PID Temperature Control
- Cooling Capacity: 35–40°C below ambient
- Protective Window Size: 43 x 31 mm
- Protective Window: IR-Cut
- Anti-Dew Heater: Integrated
- Camera Thread: M54 x 0.75 Female
- Back Focus: 8.5 mm is the bare-body configuration
- Accessory Mounting: 6 x M2.5 mounting holes
- Camera Weight: 0.785 kg (1.73 lb)
- Data Interface: USB 3.0 / USB 2.0
- Onboard Buffer: 512 MB DDR3
- USB Hub: 4 x USB 2.0 + 1 x USB 3.0
- Power Requirement: DC 12V / 3A minimum
- Recommended Power: DC 12V / 5A when powering USB accessories
- USB Power: USB 3.0 is for data transfer only; external DC power is required
Performance Analysis Charts
The SkyEye24AC 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.
-
14-Bit ADC: Provides smooth tonal transitions, fine detail, and natural color reproduction.
-
High Quantum Efficiency: >80% peak QE and a broad spectral response improve sensitivity to faint light signals.
-
HCG Mode: Reduces read noise for capturing faint targets, reaching as low as 0.3e⁻ 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
SkyEye24 Plus: Stronger Cooling & Wider Compatibility!
The ToupTek SkyEye24AC Plus brings upgraded performance and reliability to full-frame deep-sky imaging with enhanced cooling, expanded connectivity, and a redesigned structure. Its Sony IMX410C full-frame sensor delivers 24 MP resolution with large 5.94 µm pixels and 14-bit imaging for excellent sensitivity, low noise, and detailed results. Two-stage TEC cooling reaches up to 40°C below ambient, while ultra-low read noise, zero amp-glow, and a 512 MB DDR3 buffer help maintain clean, consistent data throughout long imaging sessions.
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 55 mm optical train. Removing the front adapters reduces the camera back focus to 12.5 mm or 8.5 mm for greater compatibility with optical systems and accessories.
Large Field of View
The SkyEye24AC Plus features a 24MP Sony IMX410 full-frame color sensor with large 5.94μm pixels, delivering excellent sensitivity, full-well capacity, and image quality for capturing nebulae, galaxies, and wide-field targets.
Reduced Vignetting
The SkyEye Plus features an enlarged 43 x 31 mm sensor window, providing 26% more area to help reduce edge vignetting with fast optical systems. Color models include an IR-cut window for cleaner, more accurate color imaging.
Expanded Connectivity & Reinforced Power
The integrated 5-port USB hub (4x USB 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 512 MB 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
SkyEye24AC Plus adopts a newly upgraded TEC and active cooling system, combined with PID precise temperature control algorithm, which makes the temperature control more uniform. At the same time, the cooling temperature difference further breaks through to about 40°C, effectively suppressing thermal noise and dark current. When shooting all night long, the long exposure dark field is pure and transparent, and higher quality images can be obtained after calibration.
Zero Amp-Glow for Cleaner Long Exposures
Utilizing Sony's back-illuminated non-glow CMOS sensor effectively avoids the common glow problem of traditional front-illuminated sensors and maintains a uniform and clean background signal under high gain and long exposure conditions. Calibration is easier and post-processing is more efficient.
Four-Level 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 IMX410 Color CMOS
- Sensor Type: Back-Illuminated CMOS
- Sensor Format: Full Frame
- Sensor Size: 36.02 x 23.998 mm
- Resolution: 24 MP (6064 x 4040)
- Pixel Size: 5.94 x 5.94 μm
- ADC: 14-bit
- Peak Quantum Efficiency (QE): >80%
- Dynamic Range: 87.3 dB
- Maximum SNR: 50.2 dB
- Full Well Capacity: 104 ke⁻ (20 ke⁻ in HCG Mode)
- LCG Read Noise: 4.48–1.95 e⁻
- HCG Read Noise: 0.68–0.30 e⁻
- Gain Modes: LCG, HCG & Low Noise
- Maximum Frame Rate (USB 3.0): Up to 113 fps (8-bit mode, reduced resolution/ROI)
- Cooling System: Two-Stage TEC with PID Temperature Control
- Cooling Capacity: 35–40°C below ambient
- Protective Window Size: 43 x 31 mm
- Protective Window: IR-Cut
- Anti-Dew Heater: Integrated
- Camera Thread: M54 x 0.75 Female
- Back Focus: 8.5 mm is the bare-body configuration
- Accessory Mounting: 6 x M2.5 mounting holes
- Camera Weight: 0.785 kg (1.73 lb)
- Data Interface: USB 3.0 / USB 2.0
- Onboard Buffer: 512 MB DDR3
- USB Hub: 4 x USB 2.0 + 1 x USB 3.0
- Power Requirement: DC 12V / 3A minimum
- Recommended Power: DC 12V / 5A when powering USB accessories
- USB Power: USB 3.0 is for data transfer only; external DC power is required
Performance Analysis Charts
The SkyEye24AC 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.
-
14-Bit ADC: Provides smooth tonal transitions, fine detail, and natural color reproduction.
-
High Quantum Efficiency: >80% peak QE and a broad spectral response improve sensitivity to faint light signals.
-
HCG Mode: Reduces read noise for capturing faint targets, reaching as low as 0.3e⁻ 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 IMX410 color CMOS delivers 24MP resolution with large 5.94μm pixels
- Power adapter required and sold separately
SkyEye24 Plus: Stronger Cooling & Wider Compatibility!
The ToupTek SkyEye24AC Plus brings upgraded performance and reliability to full-frame deep-sky imaging with enhanced cooling, expanded connectivity, and a redesigned structure. Its Sony IMX410C full-frame sensor delivers 24 MP resolution with large 5.94 µm pixels and 14-bit imaging for excellent sensitivity, low noise, and detailed results. Two-stage TEC cooling reaches up to 40°C below ambient, while ultra-low read noise, zero amp-glow, and a 512 MB DDR3 buffer help maintain clean, consistent data throughout long imaging sessions.
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 55 mm optical train. Removing the front adapters reduces the camera back focus to 12.5 mm or 8.5 mm for greater compatibility with optical systems and accessories.
Large Field of View
The SkyEye24AC Plus features a 24MP Sony IMX410 full-frame color sensor with large 5.94μm pixels, delivering excellent sensitivity, full-well capacity, and image quality for capturing nebulae, galaxies, and wide-field targets.
Reduced Vignetting
The SkyEye Plus features an enlarged 43 x 31 mm sensor window, providing 26% more area to help reduce edge vignetting with fast optical systems. Color models include an IR-cut window for cleaner, more accurate color imaging.
Expanded Connectivity & Reinforced Power
The integrated 5-port USB hub (4x USB 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 512 MB 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
SkyEye24AC Plus adopts a newly upgraded TEC and active cooling system, combined with PID precise temperature control algorithm, which makes the temperature control more uniform. At the same time, the cooling temperature difference further breaks through to about 40°C, effectively suppressing thermal noise and dark current. When shooting all night long, the long exposure dark field is pure and transparent, and higher quality images can be obtained after calibration.
Zero Amp-Glow for Cleaner Long Exposures
Utilizing Sony's back-illuminated non-glow CMOS sensor effectively avoids the common glow problem of traditional front-illuminated sensors and maintains a uniform and clean background signal under high gain and long exposure conditions. Calibration is easier and post-processing is more efficient.
Four-Level 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 IMX410 Color CMOS
- Sensor Type: Back-Illuminated CMOS
- Sensor Format: Full Frame
- Sensor Size: 36.02 x 23.998 mm
- Resolution: 24 MP (6064 x 4040)
- Pixel Size: 5.94 x 5.94 μm
- ADC: 14-bit
- Peak Quantum Efficiency (QE): >80%
- Dynamic Range: 87.3 dB
- Maximum SNR: 50.2 dB
- Full Well Capacity: 104 ke⁻ (20 ke⁻ in HCG Mode)
- LCG Read Noise: 4.48–1.95 e⁻
- HCG Read Noise: 0.68–0.30 e⁻
- Gain Modes: LCG, HCG & Low Noise
- Maximum Frame Rate (USB 3.0): Up to 113 fps (8-bit mode, reduced resolution/ROI)
- Cooling System: Two-Stage TEC with PID Temperature Control
- Cooling Capacity: 35–40°C below ambient
- Protective Window Size: 43 x 31 mm
- Protective Window: IR-Cut
- Anti-Dew Heater: Integrated
- Camera Thread: M54 x 0.75 Female
- Back Focus: 8.5 mm is the bare-body configuration
- Accessory Mounting: 6 x M2.5 mounting holes
- Camera Weight: 0.785 kg (1.73 lb)
- Data Interface: USB 3.0 / USB 2.0
- Onboard Buffer: 512 MB DDR3
- USB Hub: 4 x USB 2.0 + 1 x USB 3.0
- Power Requirement: DC 12V / 3A minimum
- Recommended Power: DC 12V / 5A when powering USB accessories
- USB Power: USB 3.0 is for data transfer only; external DC power is required
Performance Analysis Charts
The SkyEye24AC 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.
-
14-Bit ADC: Provides smooth tonal transitions, fine detail, and natural color reproduction.
-
High Quantum Efficiency: >80% peak QE and a broad spectral response improve sensitivity to faint light signals.
-
HCG Mode: Reduces read noise for capturing faint targets, reaching as low as 0.3e⁻ 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 24AC Plus Cooled Color Astronomy Camera