The ZWO ASI120MM-MINI CMOS Monochrome Astronomy Camera is a remarkable addition to the world of astrophotography. Designed with precision and efficiency in mind, this monochrome guide camera offers impressive features that cater to both beginners and seasoned astronomers. At just 2.1 ounces (60g) and 36mm in diameter, the ASI120MM-MINI is a featherweight companion for your telescope setup.
In this comprehensive review, we’ll explore its key attributes, performance capabilities, and suitability for various applications.
Our Top Pick
Key Features
High-Performance CMOS Sensor
- AR0130CS Sensor: The ZWO ASI120MM-MINI is equipped with a 1/3″ CMOS sensor, the AR0130CS, which is known for its high sensitivity and low noise levels. This sensor is capable of capturing detailed images of celestial objects, making it ideal for both planetary and deep-sky imaging.
- Resolution and Pixel Size: With a resolution of 1280 x 960 and a pixel size of 3.75μm, this camera delivers sharp and clear images. The small pixel size allows for greater detail and precision, which is crucial for capturing fine features of planets, the moon, and deep-sky objects.
- 12-bit ADC: The 12-bit Analog-to-Digital Converter (ADC) provides a high dynamic range, allowing the camera to capture a wide range of light intensities. This results in more detailed and nuanced images, especially in areas with high contrast.
Compact and Lightweight Design
- Portability: One of the standout features of the ASI120MM-MINI is its compact and lightweight design. Weighing only 60 grams, it is easy to transport and set up, making it an excellent choice for mobile astrophotography setups.
- Ease of Integration: The camera’s small form factor allows it to fit seamlessly into various telescope setups without requiring additional adjustments. This makes it a versatile option for different types of mounts and accessories.
Performance Analysis
Image Quality
- Monochrome Imaging: The ASI120MM-MINI is a monochrome camera, which offers several advantages over color cameras. Monochrome sensors do not have a Bayer matrix, allowing them to capture more light and detail. This results in higher sensitivity and better image quality, especially for faint celestial objects.
- High Sensitivity: With a peak Quantum Efficiency (QE) of almost 80%, the ASI120MM-MINI is highly sensitive to light. This means it can detect faint stars and details with shorter exposure times, making it an excellent choice for capturing detailed images of the night sky.
Usability
- USB 2.0 and ST4 Port: The camera features a USB 2.0 interface for fast data transfer and an ST4 port for autoguiding. The USB 2.0 connection ensures quick and reliable image capture, while the ST4 port allows the camera to be used as a guide camera, enhancing its versatility.
- Software Compatibility: The ASI120MM-MINI is compatible with a wide range of guiding and imaging software, including PHD2, SharpCap, and FireCapture. This compatibility ensures that users can integrate the camera into their existing setups and workflows with ease.
Use Cases
Planetary Imaging
- Capturing Detailed Planetary Images: The ASI120MM-MINI excels in capturing high-resolution images of planets. By using high frame rates and stacking multiple exposures, astrophotographers can achieve detailed and sharp images of planetary features such as Jupiter’s Great Red Spot or Saturn’s rings.
- Lunar Photography: The camera is also well-suited for lunar photography. Its high sensitivity and resolution allow for capturing intricate details of the lunar surface, including craters, mountains, and maria.
Deep-Sky Object Imaging
- Long-Exposure Capabilities: While primarily designed for planetary imaging, the ASI120MM-MINI is also capable of deep-sky imaging. By using long exposures and stacking techniques, it can capture stunning images of galaxies, nebulae, and star clusters.
- Combining with Other Equipment: The camera can be easily integrated with other astrophotography equipment such as filters, filter wheels, and off-axis guiders. This allows users to enhance their imaging capabilities and achieve even better results.
Additional Features
Advanced Guiding Capabilities
- Off-Axis Guiding (OAG): The ASI120MM-MINI is an excellent choice for off-axis guiding due to its compact size and high sensitivity. It can accurately track guide stars, ensuring precise tracking and reducing errors during long exposure imaging.
- Focus Range: The camera offers an extended focus range, allowing for easier adjustments and precise tracking. This feature is particularly useful when switching between different targets or adjusting for changing atmospheric conditions.
Build and Durability
- Sturdy Construction: The ASI120MM-MINI is built to last, with a robust construction that can withstand the rigors of regular use in various environments. Its durable design ensures reliable performance over time.
- Protective Window: The camera is equipped with an AR-coated window that maximizes light transmission and protects the sensor from dust and debris. This helps maintain image quality and prolongs the life of the camera.
ZWO ASI120MM-MINI CMOS Monochrome Astronomy Camera
A lightweight guide camera for stargazers, offering low read noise and efficient autoguiding.
Comparison with Competitors
ZWO ASI120MM-MINI vs. ZWO ASI120MM-S
- Design and Weight: The ASI120MM-MINI is smaller and lighter compared to the ASI120MM-S, making it more portable and easier to integrate into various setups. The MINI version is particularly favored for its compact design, which is ideal for lightweight and mobile astrophotography setups.
- Performance Metrics: Both cameras offer similar performance in terms of image quality and sensitivity. However, the ASI120MM-MINI’s form factor and ease of use make it a preferred choice for users looking for a compact solution without compromising on performance.
ZWO ASI120MM-MINI vs. QHY5L-II-M
- Sensor Specifications: The QHY5L-II-M uses a similar 1/3″ CMOS sensor but with slightly different specifications. Both cameras offer high sensitivity and resolution, but the ASI120MM-MINI’s optimized design and software support give it an edge in user experience and overall performance.
- User Experience: The ASI120MM-MINI is known for its ease of use and broad software compatibility, making it a more user-friendly option compared to the QHY5L-II-M. Users often appreciate the straightforward setup and reliable performance of the ASI120MM-MINI.
Why Choose the ZWO ASI120MM-MINI?
The ZWO ASI120MM-MINI stands out as an excellent choice for both beginners and experienced astrophotographers. Here’s why it surpasses its competitors:
- Compact and Precise Design:
- The ASI120MM-MINI is lightweight, measuring just 36mm in diameter and weighing only 2.1 ounces.
- Its sleek design allows it to reach focus at the same position as an eyepiece, making integration seamless.
- High Sensitivity and Low Read Noise:
- The AR0130CS 1/3″ sensor provides 1280 x 960 pixels with a pixel size of 3.75 μm x 3.75 μm.
- With an estimated peak quantum efficiency (QE) of almost 80%, it excels in capturing faint guide stars.
- Versatile Autoguiding and Planetary Imaging:
- Excellent performance for both planetary imaging and autoguiding.
- Noise levels are sufficiently low for effective guiding, ensuring smooth tracking during long exposures.
- USB2.0 Type C Interface:
- Easy connectivity via the USB2.0 Type C port.
- Compatible with systems like the ASIAIR Plus.
- Affordability and Reliability:
- Budget-friendly without compromising quality.
- Reliable performance for stargazing adventures.
Conclusion
The ZWO ASI120MM-MINI is simple, easy to use, and budget-friendly. Whether you’re guiding or exploring planetary targets, it’s a reliable choice. Remember, keeping the overall weight of your system down is essential, and this camera fits the bill.
Frequently Asked Questions (FAQs)
What telescopes are compatible with the ASI120MM-MINI?
The ASI120MM-MINI is compatible with a wide range of telescopes, including refractors, reflectors, and catadioptric designs. Its compact size and lightweight design make it easy to integrate with various mounting systems and accessories.
Is the camera suitable for beginners in astrophotography?
Yes, the ASI120MM-MINI is suitable for beginners due to its ease of use and user-friendly interface. The camera’s compatibility with popular astrophotography software also makes it accessible for those new to the hobby.
What are the optimal settings for planetary imaging?
For planetary imaging, it is recommended to use high frame rates, short exposure times, and a gain setting that balances sensitivity with noise. Stacking multiple exposures using software like RegiStax or AutoStakkert can further enhance image quality.
How to maintain and clean the camera?
To maintain the camera, regularly clean the protective window with a soft, lint-free cloth and use compressed air to remove any dust or debris. Store the camera in a dry, dust-free environment when not in use to protect the sensor and other components.
Can the ASI120MM-MINI be used for autoguiding?
Yes, the ASI120MM-MINI is equipped with an ST4 port and is compatible with various guiding software, making it an excellent choice for autoguiding. Its high sensitivity and small form factor make it ideal for use as a guide camera.
