ASI 6200MM-Pro (mono) ZWO

Description

Amazing Craftsmanship, Lightweight body, Solid image quality

We have been working hard to reduce the weight of the camera while improving the performance of the camera. After years of technical accumulation and repeated weight loss experiments by ZWO engineers, ZWO finally concentrated the ASI6200 to 0.7KG

Full Frame format

The ASI6200MM Pro uses full frame format, the sensor length and width are 36mm * 24mm and the diagonal is 43.3mm. This is a 62MP camera with a small pixel size of 3.76um that can accommodate a large well depth of 51.4ke.

Native 16bit ADC

ASI6200MM Pro is our first batch of CMOS astronomy cameras with 16bit ADC. This 16bit ADC is not a CCD 16bit ADC, and it can really achieve a dynamic range output of 14 stops. This significantly improves the image sharpness and contrast, and the color changes are smoother and more natural.

IMX455 backlit sensor

Sony’s back-illuminated CMOS image sensor improves sensitivity and noise reduction – the key factors to enhancing image quality, while radically realigning their fundamental pixel structure from front-illumination to back-illumination. It has retained 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 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 that have been moved to the reverse of the silicon substrate.

Sony has newly developed a unique photo-diode structure and on-chip lens optimized for back-illuminated structures, that achieves a higher sensitivity and a lower random noise without light by reducing noise, dark current and defect pixels compared to the conventional front-illuminated structure.

 

Camera Performance

The ASI6200MM Pro has excellent performance with a dynamic range of up to 14stops. When the gain value is 100, the magical HCG high gain mode is turned on, the readout noise is greatly reduced, and the dynamic range is basically unchanged. It is recommended to set the gain to 0 or gain 100 in deep space.

Zero Amp Glow

Traditional CMOS sensors produce a weak infrared light source during operation quite often seen in the corner of uncalibrated images as the tell tale signs of ‘amp glow’. As the ASI6200MM Pro uses zero amp glow circuitry, you won’t have to worry about amp glow even when using high gain, long exposure imaging.

With amp glow – exposure 300 second exposure

ASI6200 frame with no amp glow – Exposure 300 seconds

Anti-dew

ASI6200MM Pro comes with the polyimide heater that can avoid any dew problems.

The anti-dew heater which completely fits the protective window will heat it to avoid any dew problems.

The heat anti-dew heater power is around 5W and can be turned off in software to save power.

QE value

We estimate that the QE peak value of the ASI6200MM Pro is above 80%.

Two-stage TEC cooling, ultra-low dark current

ASI6200MM Pro uses two stage TEC cooling that can lower the CMOS sensor temperature to more that 35c below ambient, which can greatly reduce dark current generation and sensor noise even with extended exposure times.

The unique dark current suppression technology can even further reduce dark current noise.

At a cooling temperature of 0 °, the dark current noise is only 0.003e/s/pix. Which means 300s exposure can only cause 0.9e dark current noise, which is completely negligible!

Note：ASI6200 Pro camera requires 1A current from the USB, if your PC can not provide enough current, please  use an external 12V power supply to power the camera .

 

USB3.0 & 256M DDR3 Memory

The ASI6200MM Pro 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.

Mechanical Diagram

What is in the box?

The best solution of 55mm back focus length

Usage guider：

Connection methods of ASI6200MM Pro, 2” EFW and M68 OAG to get the best back-focus-length-solutions-55mm:

https://astronomy-imaging-camera.com/tutorials/connection-methods-of-asi6200mm-pro-2-efw-and-m68-oag.html

Connecting Diagram

1. Nikon-M54 adapter
2. EOS-M54 adapter
3. Nikon lens
4. Canon lens

 

Specifications

Sensor: SONY IMX455 CMOS
Diagonal: 43.3mm
Resolution: 62 Mega Pixel 9576*6388
Pixel Size: 3.76μm
Bayer Pattern: None
Shutter:Rolling shutter
Exposure Range: 32μs-2000s
ROI: Supported
Read Noise: 1.5-3.5e
QE peak: over 80%
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: USB3.0/USB2.0
Interface: USB3.0/USB2.0
Adaptor: M42X0.75
Protect window: D60-AR Coating
Dimensions: 90mm Diameter
Weight: 700g
Back Focus Distance: 17.5mm
Cooling: Regulated Two Stage TEC
Delta T: 35°C-35°C below ambient
Camera Power consumption: 650mA at 5V
Cooler Power consumption: 12V at 3A Max
Working Temperature: -5°C—45°C
Storage Temperature: -20°C—60°C
Working Relative Humidity: 20%—80%
Storage Relative Humidity: 20%—95%
Max FPS at full resolution:
16Bit ADC
9576×6388 3.19fps
7680×4800 5.29fps
6400×4096 7.44fps
4096×2160 14.35fps
3840×2160 14.35fps
1920×1080 28.04fps
1280×720 41.12fps
640×480 59.67fps
320×240 108.72fps
more resolutions are in software, support customize resolution.