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ZWO ASI1600MM COOLED Mono Camera + EFW + RGBL Filter Set


Quick Overview

Please note: this item is now discontinued and has been replaced with the ASI1600 Pro systems

ZWO ASI1600MM COOLED Mono Camera + EFW + RGBL Filter Set
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ZWO ASI1600MM COOLED Mono Camera + EFW + RGBL Filter Set

ZWO has packaged the popular ASI1600MM-COOLED Astronomy Camera with their NEW 1.25″ Electronic Filter Wheel and their NEW 1.25″ RGBL Filter Set. These filters have been designed specifically for this camera to maximise the output of the camera. A perfect set up for deep sky imaging.


ZWO EFWMini NEW 5-position 1.25″ Electronic Filter Wheel
ZWO NEW 1.25″ RGBL Filter Set designed for ASI1600 series

This is an exciting moment as with this NEW ZWO ASI1600MM-C camera ZWO made its debut into the DSO imager camera market.

The ZWO ASI1600MM COOLED camera is an excellent choice for imaging deep sky objects, however it can do much more than that. With a max framerate of 23 FPS this camera can also be used as an extremely high resolution planetary imager. If you cannot decide if your thing is deep sky or planetary imaging, go for this camera. It is also a much more affordable alternative to converting a dSLR.

This version also comes with built-in active cooling that helps to reduce electronic noise to the minimum.

You can even use it for guiding, although we understand that it is somewhat a waste of a talent to use it for guiding, but there might be special circumstances or setups when you would want to use it for guiding, so the opportunity is given.

There are four versions with the same large 4/3" sensor (21.9mm diagonal):

Colour or monochrome and cooled or uncooled.

Now you will have to decide whether you want a simple solution and go for a one shot COLOUR CAMERA or would like to get more data out your camera and go for the MONOCHROME version. If you would mainly use it as a deep sky imager camera, we'd also recommend to go for the COOLED version, but if you cannot afford or you'd be mainly using it as a very high resolution planetary imager, then go for the UNCOOLED version.

This product listing is for the COOLED MONOCHROME version of the ASI1600.

Here are links to all available versions:

ASI1600MC: UNCOOLED COLOUR VERSION (the deep sky imaging astronomer's quick tool)

ASI1600MC-COOL: COOLED COLOUR VERSION (the deep sky imaging astronomer's quick ultimate tool)

ASI1600MM: UNCOOLED MONOCHROME VERSION (the deep sky imaging astronomer's ultimate tool if you have lots of spare time)

ASI1600MM-COOL: COOLED MONOCHROME VERSION (the deep sky imaging astronomer's ultimate tool for very best images if you have lots of spare time)

Why not to try L-RGB or narrow band photography with the monochrome version of this camera, the ZWO ASI1600MM or ZWO ASI1600MM-COOL.
If you are not in rush, but you'd like to get out the best result from your camera, this monochrome version is the right choce for you, although if you are on a tight budget, you could also consider the UNCOOOLED version instead.

Consider that with this monochrome version you'll also need a filter wheel and a set of L-RGB filters or H-alpha and OIII filters, and maybe even H-beta and SII filters as well for narrow band photography...

Please note that the sensor diagonal size is very close to the internal clear aperture of a 1.25" filter, therefore with fast telescopes (small f-ratio) there might be vignetting.

The limiting focal ratio with the ZWO manual filter wheel depends on the thickness of the filter glass and its clear aperture. The latter is usually 24mm for 1.25" filters.

Filter glass thickness: 2mm Limiting focal ratio: f/8.5 (i.e. if you use a f/8 telescope with a 2mm thick filter, there will be a bit of vignetting in the corners...)

Filter glass thickness: 3mm Limiting focal ratio: f/9

Filter glass thickness: 4mm Limiting focal ratio: f/9.5

Above are approximate figures as the filter's actual position within its housing will also influence the calculation.

AS you can see from the above, a combination of this camera with a ZWO 1.25" or similar filter wheel would work well with Schmidth-Cassegrain or slower telescopes, but for fast refractors and reflectors a filter wheel that can accept 31mm filters would be better suited as that would allow much lower focal ratio limits: f/2.8, f/3 and f/3.2 respectively.

Images are for demonstration only. Canon EOS lens adapter is not included, but available separately.

Features of the NEW ZWO ASI1600MC-COOLED
Recommended for Deep Sky Imaging as well as the Sun, Moon and planets at very high resolution (the monochrome version is better for the Sun)
(To image the Sun you'll have to use a proper front solar filter or Herschel wedge depending on your telescope. Please contact us if not sure!)
Resolution: 16MPixel 4656X3520 at up to 23fps
Pixel Size: 3.8µm
Exposure range: 32µs - 2000s!
Read Noise: 1.2e @ 30dB gain
Full Well: 20ke
ADC: 12 bit
Cooling: 40 - 45 degrees below ambient (obviously, only on cooled versions)
Standard Autoguider Port
Built-in RAW mode and Grey mode output support. Only about 30% storage space required compared to the Color data format!
Peak Quantum Efficiency: TBC
Full aluminum housing with standard 2" interface
M42X0.75 internal thread.


On the included CD you'll find drivers and two software applications: Firecapture and SharpCap. These are both freeware and the latest versions can be downloaded from the developers' websites.
If you have any problem with installing any of the software from the CD, please download them from here:
Firecapture Beta Downloads
SharpCap Downloads
We'd recommend to always use the beta version of Firecapture, but reverse to the latest stable version if you experience problems.


Here you can download a pdf file that will guide you through ZWO ASI camera troubleshooting. Click here!


Please find further info about autoguiding with this camera here: ZWO ASI120 AUTOGUIDING

due to the large sensor size, a 150 degree wide lens IS NOT included as it is not compatible.

Specification of ZWO ASI1600MC
Camera technical details

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
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 resolution

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

more resolutions are user defined

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