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ZWO ASI 1600MM-PRO USB 3.0 Mono Camera
ZWO ASI 1600MM-PRO USB 3.0 Mono CameraZWO ASI 1600MM-PRO USB 3.0 Mono CameraZWO ASI 1600MM-PRO USB 3.0 Mono Camera

ZWO ASI 1600MM-PRO USB 3.0 Mono Camera

£1,275.00✓ 2 year warranty


In stock shipped 1-2 working days.

About this product

Model:  zwo_asi1600mm-pro
Part Number:  ASI1600MM-PRO

New 'PRO' version features a 256MB memory buffer for improved image transfer.

ZWO are well known for their lunar, solar and planetary imaging cameras but the ASI 1600MM, with it’s large (4/3” diagonal) cooled sensor, is aimed at deep-sky imagers. 

Imaging with CMOS sensors requires a different approach to traditional CCD sensors, tests suggest more frames / shorter exposures work better than less frames / longer exposures. This takes advantage of the CMOS sensor's very low read noise and stacking more frames suits the type of data CMOS sensors produce (12 or 14-bit, rather than the 16-bit we are used to). 

From a practical point of view the ASI1600’s large sensor means those using 1.25” filters will need to mount them as close to the sensor as possible. Flat frames can be used to even out uneven illumination at the frame edges.

Includes an M42 extender ring that, when removed, shortens the back focus distance to only 6.5mm. 


  • 4/3" 16 Megapixels CMOS Sensor
  • 256MB DDR3 Memory Buffer
  • Regulated two-stage Tec-Cooling: 40-45 degree below ambient temperature
  • Very low read noise - 1.2e @30db gain
  • 12Bit ADC - provides real 12bit dynamic range
  • Electronic shutter - no issues with vibrations sometimes found in mechanical shutters
  • USB3.0 Port (back compatible with USB2.0) - 14.7fps@4656x3520  124.5fps@320X240
  • AR coated protective window - all light can pass
  • Compatible with Windows / Mac OS / Linux

DDR Memory Buffer

ZWO Pro cameras feature a 256MB DDR3 memory buffer to help maintain data transfer stability and reduce amp-glow issues caused by the slow data transfer speed when using a USB2.0 port. 

All ZWO cameras include a 2-year warranty. 

Camera Field of View Simulator

Astrophotography Performance

The ASI1600 Pro offers very good astrophotography performance - low read noise, low dark current and high dynamic range.

QE Graph

Proposed QE peak value is more than 60%.

Dark Current

Reliable Mechanical Structure

The ASI1600 Pro uses 4 screws to seal the internal chamber - this has been fully tested and is very stable.

Even under high humidity conditions the ASI1600 performs well with no dew problems.


USB 3.0 Port & USB2.0 Hub

USB 3.0 Port: Provides 5Gb bandwidth to make it possible for the ASI1600 Pro to run at 14.7 fps (12bit, normal mode) or 19 fps (23bit, high speed mode)  at full resolution (11.7Mega).

We recommend a 12V DC adapter capable of 3A~5A or more for the cooler power supply (2.1*5.5, center positive). A battery from 9-15V is also suitable for cooling power supply.

USB 2.0 HUB: Can be used to connect with various accessories, such as filter wheel, guide camera and electronic focuser, so you can manage your cables better with the USB2.0 hub. There are 2 short 0.5m USB2.0 cables supplied with the ASI1600 Pro. The hub can provide power from the external power supply if used.



The ASI1600 Pro has a 2-stage TEC cooling system to enable cooling down to 40-45°C below ambient. An external power supply is required to run the cooler which is not supplied.


Mechanical Drawing

Connection Drawing


  1. M43-T2 adapter 
  2. EOS-T2 adapter 
  3. 2”Filter (optional)
  4. 1.25” T-Mount 
  5. 1.25” Filter (optional)
  6. M42-1.25” Filter (optional)
  7. T2 extender 11mm
  8. M42-M48 extender 16.5mm
  9. T2-T2 adapter
  10. EFW mini
  11. EOS adapter for EFW+1600


What's in the box

  • ASI1600MM Camera
  • Soft Padded Case
  • T2-1.25" Nosepiece Adapter
  • 1.25" Cap
  • 2-metre USB 3.0 Cable
  • USB 2.0 Short Cable x2
  • T2-1.25" Adapter
  • T2 Extender 21mm
  • T2-M48 16.5mm Extender
  • M42-M48 Adapter
  • Spacers x2
  • Quick Start Guide
  • Driver CD


Sensor 4/3″ CMOS
Diagonal 21.9mm
Resolution 16Mega Pixels 4656×3520
Pixel Size 3.8µm
Max FPS at full resolution 23FPS
Exposure Range 32µs-2000s
Read Noise 1.2e @30db gain
QE peak TBD
Full well 20ke
ADC 12bit
Interface USB3.0/USB2.0
Adaptor 2″ / 1.25″ / M42X0.75
Protect window AR window
Dimensions 78mm Diameter
Weight 410g
Back Focus Distance 6.5mm
Cooling Regulated Two Stage TEC
Delta T 40-45 below ambient
Cooler Power consumption 12V at 2A Max


Supported Resolutions:

12Bit ADC

  • 4656×3520 14.7fps
  • 3840×2160 23.1fps
  • 1920×1680 32.9fps
  • 1280×960 47.1fps
  • 640×480 80.4fps
  • 320×240 124.4fps

10Bit ADC

  • 4656×3520 23fps
  • 3840×2160 36.2fps
  • 1920×1680 57.7fps
  • 1280×960 73.6fps
  • 640×480 125.7fps
  • 320×240 192.4fps

Additional resolutions can be user defined.

Downloads / Manuals

The following manuals and downloads are available for this product:


ZWO ASI Camera User Manual v1.3 (PDF)

ZWO ASI USB2.0 Camera FAQ v1.0 (PDF)

ZWO ASI USB2.0 Camera Troubleshooting v1.0 (PDF)


ZWO Software and Drivers


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