Why Purchase from All-Star Telescope?
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30 Day Return Policy
Buy with confidence knowing that we accept returns up to 30 days after purchase. We want you to have something you will actually use and we are confident that we keep good quality products in our store with No Junk.
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Shipping around for the best price is tough, we make it easier by offering the best pricing in the market. But if you find a better price on an in-store item somewhere else we will match it!
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Product Description
ASI664MC is a remarkable new planetary CMOS camera. The 1/1.8" Sony IMX664 sensor features a small pixel size of 2.9µm pixel and a high resolution of 2704*1536(4.15MP). In high-speed mode, the frame rate reaches 95fps, while the readout noise remains at a low level, as low as 0.46e!
The larger sensor size and higher resolution compared with ASI662MC result in sharper images for a better astrophotography experience. The ASI664MC adopts Sony IMX664 sensor with the latest STARVIS 2 technology.
Compared to the previous generation of sensors, it has a lower readout noise and an extreme large full well capacity which is 3 times larger than that of IMX462. This helps effectively avoid overexposure issues and also allow longer exposures. In low light conditions, the camera performs excellent, capturing very clear images of celestial objects.
ASI664MC vs ASI662MC
ASI664MC can be considered as an iteration of ASI662MC. With the great improvement in sensor size and resolution, it provides a larger FOV and also results in high-quality images containing more details.
| Model | ASI662MC | ASI664MC | ASI585MC |
| Color or Mono | Color | Color | Color |
| Format | 1/2.8" | 1/1.8" | 1/1.2" |
| Diagonal | 6.45mm | 9.02mm | 12.84mm |
| Resolution | 1920x1080 2.07MP |
2704X1536 4.15MP |
3840X2160 8.29MP |
| Pixel Size | 2.9um | 2.9um | 2.9um |
| Sensor Size | 5.57 X 3.13mm | 7.84 X 4.45mm | 11.14 X 6.27mm |
| FPS | 107.6 | 95 | 46.9 |
| Shutter | Rolling | Rolling | Rolling |
| Readout Noise | 0.8-6.9e (1.22@19db gain) |
0.46-5.8e (3.2@19db gain) |
0.8-12e (2.4e@15db gain) |
| QE | 91% | 91% | 91% |
| Full Well | 38.2Ke | 36.5Ke | 47Ke |
| ADC | 12Bit | 12Bit | 12Bit |
| Back Focus | 12.5mm | 12.5mm | 6.5mm/17.5mm |
USB 3.0 & 256M DDR3 Memory
The camera is equipped with a USB 3.0 transmission interface and a built-in 256MB DDR3 cache to ensure stable and secure data transmission. Under long exposure, it effectively avoids frame dropping and greatly reduces the glow effect caused by slow reading speed.
Zero Amp Glow
ASI664MC adopts no-glow circuity to avoid the annoying amp glow being produced, and ensure the image quality no matter how long the exposure and how high the gain value is.
Camera Curve
Low read noise, high dynamic range
The camera has a built-in HCG mode, which can effectively reduce readout noise at high gain and keep the dynamic range at the same level as it does at low gain. At gain 252 and above, the HCG mode is automatically turned on; the dynamic range is close to 11bit; the readout noise can be lower than 1.0e.
Quantum Efficiency
QE curve and readout noise are very important parameters to measure the camera's performance. Higher QE and lower readout noise are necessary to improve the image signal-to-noise ratio. According to our estimation, the QE peak value of ASI664MC is about 91%.
Protective Window
ASI664MC adopts an AR-coated filter as the protective window (Diameter: 21mm, thickness: 1.1mm). It improves the camera's performance in UV and NIR wavelengths.
What's in the Box
Specifications
| Sensor | 1 / 1.8" CMOS Sony-IMX664 |
| Sensor Size |
7.8X4.5mm |
| QE peak | 91% |
| Back focus length | 12.5mm |
| Max fps | 95 |
| Full well | 36.5Ke |
| Shutter | Rolling shutter |
| Resolution | 2704x1536 |
| Pixel Size | 2.9um |
| Exposure Range | 32μs~2000s |
| Interface | USB 3.0 /USB 2.0 Type-B |
| Read Noise |
0.46e |
| ADC | 12bit |
| Dimension | 62mm diameter |
| Weight | |
| Working Temperature | -5°C~50°C |
| Storage Temperature | -10°C~60°C |
| Working Relative Humidity | 0-80% |
| Supported OS | WIN7/8/10 32&64, Linux, Mac |
Additional Articles, Videos, and Links
External Links
Astrophotography for Beginners Step 4: Shooting Deep-Sky Images
Taking deep sky pictures can be daunting, luckily there is an easy process to follow to allow you to get great shots! Here is the typical process for actually taking deep-sky images in the field.
Astrophotography for Beginners Step 3: Choosing Gear for Deep-Sky Imaging
Using a star tracker gains you experience with the fundamentals of deep-sky imaging. Shooting the Moon gains you experience focusing and framing through your telescope. Through your sessions you’ll...
Astrophotography for Beginners - Start Here: Getting into Astrophotography Step by Step
Shooting the night sky has never been more popular, nor easier. The choice of equipment has also never been better, or more affordable. However, as per the advice given by Dickinson and Dyer in the...
Astrophotography for Beginners Step 1: Using the Star Adventurer Tracker
By far the most economical and easiest way to capture beautiful images of the Milky Way and large deep-sky objects like the Andromeda Galaxy (shown here) is to use a star tracker. Here are steps an...
Astrophotography for Beginners Step 2: How to Shoot the Moon
Close-ups of the Moon are rewarding, and an easy way to learn to shoot through your telescope. While good results are possible with a phone camera clamped to an eyepiece (as shown below), this tuto...