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Product Description
ImportantFor the following imaging camera models, please use a separate 12V power supply rather than the power hub in the ASIAIR Pro as the hub cannot provide enough amperage to power the camera's TEC coolersASI6200, ASI2600, ASI2400, ASI533, ASI071MC
ASI2600MM Pro uses Sony’s latest back-illuminated IMX571 APS-C format native 16-bit ADC sensor. It’s one of the most anticipated astronomy cameras of 2021. Here is some of the reasons why:
- Ultra-high 14 stops dynamic range
- Ultra-low 1.0e readout noise
- Innovative breakthrough design resulting in zero amp-glow
- 16-bit ADC sensor
APS-C Format
This is a 26MP camera featuring a small pixel size of 3.76um yet also having the incredible ability of accommodating a large well depth of 50ke.
The sensor length and width are 23.5mm * 15.7mm. The diagonal is 28.3mm.
Native 16bit ADC
As one of the few CMOS astronomy cameras with 16-bit ADC on the market, ASI2600MM Pro was conceived having in mind the optimal characteristics for astrophotography. This 16bit ADC is not a CCD 16bit ADC. It can really achieve a dynamic range output of 14 stop, which will significantly improve the image sharpness and contrast, and also create smoother and more natural contrast transitions (as well as colour gradients when using different types of filters).
Sony IMX571 Backlit Sensor
Sony’s back-illuminated CMOS image sensor improves the sensitivity and noise reduction – the key factors to enhancing image quality. It does this by radically realigning the fundamental pixel structure from front-illumination to back-illumination, while still retaining the advantages of CMOS image sensors such as low power consumption and high-speed operation.
With a conventional front-illumination structure, the metal wiring and transistors on the surface of the silicon substrate that form the sensor’s light-sensitive area (photo-diode), impede photon-gathering carried out by the on-chip lens. A back-illuminated structure minimizes the degradation of sensitivity to the optical angle response, while also increasing the amount of light that enters each pixel due to the lack of obstacles such as metal wiring and transistors. These components have been moved to the back-side of the silicon substrate.
Camera Performance
The ASI2600MM Pro boasts excellent performance with a dynamic range of up to 14 stops. When the gain value is set to 100, the HCG high gain mode is turned on. We’re not saying it’s magic…but we’d like to think it is pretty close. With the HCG-mode turned on, the readout noise is greatly reduced, and the dynamic range is basically unchanged. To improve the data quality, it is recommended to set the gain to 0 or gain 100 during deep-sky imaging.
Zero Amp Glow
Traditional CMOS sensors produce a weak infrared light source during operation quite often seen in the corner of uncalibrated images. It is the tell-tale signs of ‘amp glow’. As the ASI2600MM Pro uses zero amp glow circuitry, you won’t have to worry about amp glow even when using high gain, long exposure imaging.
Anti-Dew Heater
There is a polyimide heater completely fitting the protective window in the ASI2600MM Pro camera. It can help avoid any potential annoying dew or icing issues depending on the environment in which you capture images.
The power of the heater is around 5W. You are free to turn it off anytime in your photography software if you want to save power.
Two-Stage TEC Cooling, Ultra-Low Dark Current
Thanks to the two stage TEC cooling, ASI2600MM Pro can lower the CMOS sensor temperature to more than 35 degrees Celsius below ambient temperature, which can greatly reduce dark current generation and sensor noise even during extended exposure times.
The unique dark current suppression technology can further reduce dark current noise. At a cooling temperature of 0 °C, the dark current noise is only 0.0022e/s/pixel. This means a 300s exposure will only cause 0.7e dark current noise, which is less than the readout noise. While at a cooling temperature of -20 °, the dark current can even reduce to 0.00012e/s/pixel, which is completely negligible!
USB3.0 & 256M DDR3 Memory
The ASI2600MM Pro is equipped with a USB 3.0 transmission interface and a built-in 256MB DDR3 cache to ensure stable and secure data transmission.
Connecting Diagram (refer to photo)
- Nikon-T2 adapter
- EOS-T2 adapter
- 2” filter (optional)
- Nikon lens
- Canon lens
Specifications
| Sensor | SONY IMX571 CMOS |
| Diagonal | 28.3mm |
| Image area | 23.5*15.7mm |
| Resolution | 26 Mega Pixel 6248*4176 |
| Pixel Size | 3.76μm |
| Shutter | Rolling shutter |
| Exposure Range | 32μs-2000s |
| ROI | Supported |
| Read Noise | 1.0-3.3e |
| QE peak | 91% |
| Full well | 50000e |
| ADC | 16bit |
| DDRIII Buffer | 256MB |
| Non-volatile memory/On camera storage | Build-in total 192K byte user-accessible space(image size up to 480X320) |
| Interface | USB 3.0/USB 2.0 |
| Adaptor | M42X0.75 |
| Protect window | D60-2 AR |
| Dimensions | 90mm Diameter |
| Weight | 700g |
| Back Focus Distance | 17.5mm |
| Cooling | Regulated Two-Stage TEC |
| Delta T | 35°C below ambient |
| Camera Power consumption | 1.15A at 5V |
| Cooler Power consumption | 12V at 3A Max |
| Working Temperature | -5°C—50°C |
| Storage Temperature | -10°C—60°C |
| Working Relative Humidity | 0%—80% |
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...