Product Description
Please notice that all cameras with cooler need to be connected to an external 11-15v power supply to work.
ASI1600MM Pro


The ASI1600MM Pro is one of the most popular cameras from ZWO. It has gained a reputation as a fantastic camera if you want to get serious about your astrophotography. Some of the highlights include:
- 4/3” format with 3.8 um pixel size– flexible pixel size for many types of telescopes.
- 12-bit ADC – giving high dynamic range of 12.5 stops.
- A solid 20ke- full well capacity– helping to reduce the issue of, for example, saturated stars.
- 16-megapixel sensor with 4656*3520 pixels– plenty of detail can be captured in high resolution.
- Read noise as low as 1.2 e-.
DDR Memory Buffer
DDR memory buffer is the main difference between ASI “Cool” and “Pro” cameras.
ASI1600MM Pro camera includes a 256MB DDR3 memory buffer to help improve data transfer reliability. Additionally, the use of a memory buffer minimizes amp-glow, which is caused by the slow transfer speeds when the camera is used with a USB 2.0 port.

Astrophotography Performance
ASI1600 Pro offers very good performance for astrophotography. Low read noise, low dark current, high dynamic range.
ASI1600 has a build-in 12bit ADC but can provide 12.5 stops dynamic range which is even better than KAF8300 due to its super low read noise.
QE Graph
We suppose the QE peak value is more than 60%.

Dark Current
The dark current of ASI1600 from out test result.
here is a 300S dark frame tested with the cooler running at -25 degree.

Notice: For the possible amp glow that shows on your images, please refer to this tutorial: “What is Amp-glow and how do I manage it? “
https://astronomy-imaging-camera.com/faq
Reliable Mechanical Structures
There are four screws that seal the sensor chamber. Our camera design has been extensively tested and is very stable.
Even when used in higher humidity environments, ASI1600 Pro will still work fine without dew problems.

USB 3.0 Port & USB2.0 HUB
USB 3.0 Port: Provides 5Gb bandwidth to make it possible for ASI1600 Pro to run at 14.7 fps (12bit, normal mode) or 23 fps (10bit, high speed mode) at full resolution (16Mega).
USB 2.0 HUB: Can connect with various accessories, including a filter wheel, guide camera or electronic focuser, allowing you to manage your cables better. There are two short 0.5m USB2.0 cables included with the ASI1600 Pro. The hub is powered by the external power supply if you connect one.

Cooling System
Thanks to the two-stage TEC cooling, ASI1600MM Pro can lower the CMOS sensor temperature to more than 40-45 degrees Celsius below ambient temperature, which can greatly reduce dark current generation and sensor noise even during extended exposure times.
*The Delta T 40-45℃ is tested at 30℃ ambient temperature. It might get down when the cooling system is working for a long time. Also, as the ambient temperature falls, the Delta T would also decrease.
Please notice that the camera needs to be connected to an external 11-15v power supply to implement the cooling function. We recommend you use 12V@3A DC adapter (5.5*2.1mm, center pole positive) or lithium battery with 11-15V to power the camera. If you don’t have one, please click here to buy a 12V power adapter. There are 4 different standards for different countries, please make sure you selected the correct adapter when placing the order.
Connecting Diagram

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
Mechanical Diagram

What is in the box?
ASI1600 Pro box includes all necessary cables, adapters, and manuals.

Spacer thickness: 0.1mm *1+0.2mm *2+0.5mm *1
The best solution of 55mm back focus length

Read more: https://astronomy-imaging-camera.com/tutorials/best-back-focus-length-solutions-55mm.html
Please notice that the camera needs to be connected to an external DC 12V @3A~5A power supply adapter for use (connector 5.5*2.1mm, center pole positive). If you don’t have one, click here to buy a 12V power adapter. There are 4 different standards for different countries, make sure you selected the correct adapter when placing the order.
Or you can also use lithium battery with 11-15V to power the camera.
Just be aware that power supplies out of this range might cause irreversible damages to your camera.
Appreciation of user works:
The Cocoon nebula (IC 5146, Sh2-125)
APOD Image of the day, photo by Marcel Drechsler

Camera technical details
Sensor: 4/3″ CMOS
Diagonal: 22.2mm
Resolution: 16Mega Pixels 4656×3520
Pixel Size: 3.8µm
Max FPS at full resolution :23FPS
Shutter: Rolling shutter
Exposure Range: 32µs-2000s
Read Noise: 1.2-3.6e
QE peak: 60%
Full well: 20ke
ADC:12bit
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
Adaptor: 2″ / 1.25″ / M42X0.75
Protect window:AR window(D32-2-AR)
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
Working Temperature: -5°C—45°C
Storage Temperature: -20°C—60°C
Working Relative Humidity: 20%—80%
Storage Relative Humidity: 20%—95%
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
Our website is continuously updated with the most recent camera drivers as well as software for DSO and planetary imaging. Please make sure the most recent Driver and software have been installed before you start shooting:
It is also recommended to read the Manuals first before shooting.
Shipping
Fast Shipping: we will choose DHL, UPS, FedEx etc to deliver it. Usually you will get your package within 15-20 days.
- Fast Shipping(amount ≧ 199USD) for free
- Fast Shipping(amount < 199USD) : $30.00 (We do not provide free shipping from now on.)
Introduction
- It will take around 60-90 days for shipment via ePacket/China Post Registered Air Mail/EMS, which can’t be guaranteed due to force majeure. If you can’t get the air mail package after 2months, please let us know ASAP: info@zwoptical.com
- Customers from Brazil and Chile should leave a message to provide your CPF or CNPJ as your custom needs it.
- Customers from Russia need to provide the complete English name with three words as well as the English shipping address.
Tracking site
DGM: http://webtrack.dhlglobalmail.com/?locale=en-US
China air mail: http://www.17track.net/en
Tax
- The price list on our website is USD without tax.
- Please note that buyers are liable to pay tax involved, such as Import tax, VAT , customs handling fee, etc. The additional fees may be collected at time of delivery by courier.
- For best local service we advise customers buy our cameras form local dealers.
Warranty and Return Policy
1. ZWO will provide a 2-year free warranty service (Warranty Period) for ZWO products purchased by Users from ZWO (“Products”) in accordance with this Policy, commencing on the day following receipt of the Products by Users. For ASIAIR Plus users, commencing on the day of device activation.
2. If a User encounters the following Dead on Arrival (DOA) and contacts ZWO within the corresponding time limit to issue the Product purchase invoice and relevant evidence, ZWO will provide door-to-door pick-up service and, as appropriate, after-sale replacement (or partial replacement), repair or return (or partial return) service for the following Products:
1) Product quality problem
Provided that a User detects a quality problem and contacts ZWO within 30 days after receipt of the Products, and ZWO support team confirms that the Products indeed have a quality problem or defect after their inspection, ZWO will provide free replacement service towards such Products;
2) Product transportation problem
Provided that a User finds obvious signs of bubbling, serious overstocking, or deformation on the outer package of the Products upon receipt of the Products, and provides ZWO with pictures of the outer package and proof of receipt within 3 days after receipt of such Products, ZWO support team will verify the actual shipper and determine the responsible party for such transportation problem. In the event that ZWO is the actual shipper, ZWO will be responsible for providing the relevant return or replacement service, however, if the Products are directly sold or transported to the User by an agent of ZWO, the agent will be responsible for providing the relevant return or replacement service.
3. If the Products are under the following circumstances, they are not within the scope of warranty service, ZWO may provide maintenance services to the Users:
1) The Warranty Period of the Products has expired; or
2) The Products are injected into liquid or affected by moisture or corrosion; or
3) The Products are damaged by an external force (such as the broken of the camera protection window glass, the deformation of the product shell, the broken of the USB port, etc.); or
4) Disassembling, repairing by a third party, refurbishment of the Products (such as downloading erroneous firmware) without the written authorization of ZWO; or
5) The product system is modified, or the maintenance notice is lost or changed; or
6) Product quality problem caused by installation not following the requirements or instructions for the Products; or
7) Physical damage or failure of the Products caused by the force majeure (such as strong vibration or extrusion such as flood, fire, earthquake, or thunder stroke); or
8)Damage caused by the improper User operation during the period of shooting or use, such as using without the equipment protection or direct shooting of the sun; or
9) No valid purchase invoice or warranty certificate; or
10) The Products are second-hand products.
Any quality problem with the accessories or other parts of the Products is not a condition for the return or change of the Products, and the User may solely request to replace the accessories with new ones, which shall be handled after verification by ZWO support team.
If the issue with your ZWO product was caused by certain damage (such as severe damage not covered by the 2-year warranty), you might have to pay the replacement value.
4. For the normal repair or replacement of the Products during the Warranty Period, the User will bear the return cost. When returning the Products, Users shall specify the actual reasons for the damage to the Products, and shall provide the corresponding valid certificates, such as pictures or videos, etc.
For the Products that need to be replaced after being confirmed by ZWO in writing, the User shall return the Products with the complete package, together with all accessories, manuals, etc., to the address designated by ZWO.
By sending back the product to ZWO, the User agrees to pay out-of-warranty fees that may arise during the repair process of the product. ZWO will send back the product after charging.
5. If a User encounters any problem during the use of ZWO Products, you may at any time contact ZWO for technical support via ZWO Support.
For the Products that need to be returned for after-sales service, ZWO will provide the corresponding RMA code for reference.
ZWO will not accept any products having no RMA code that have been returned privately without ZWO written confirmation.
6. If a User purchases the ZWO Products from a ZWO agent, the User may contact the ZWO agent directly for the relevant after-sales service.
Hani – :
I plan do 10 minute exposures, can you provide a 600 sec dark frame? How bad is the amp glow at 600 sec and 1000 sec?
Thanks
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Sam Wen – :
some body already do it, you can find these dark frames in this thread
http://www.cloudynights.com/topic/535506-asi1600mmc-beta-test
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Christopher Campbell (verified owner) – :
I ordered the 1600MM-Cool however it’s on backorder:1. Does that mean that we are one camera behind in back order right now? If that’s the case, what is the turnaround time for a single unit?
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Sam Wen – :
we already sent orders put before May
for new orders, we will try to send all in this month
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Tim – :
Hi!
Maxim DL V5 support 1600?
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vanessa Zhang – :
Hi Tim
Yes, it supports.
You can see here more information about sofrware.
https://astronomy-imaging-camera.com/software/
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Sam Wen – :
yes, support through ASCOM
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Glen – :
Sam, a beta tester on Cloudy Nights reported AMP Glow concerns and an apparent fix you supplied, can you explain the issue and what impact does this have on production release?
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Sam Wen – :
the amp-glow issue is not so serious actually
they are not very obvious if you exposure less than 5 minutes which should be enough for most targets
you can check the 300s dark frame in the product description
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John Schnupp – :
I have seen a couple questions about the sensor. The Olympus OMD E-M1 uses a Panasonic sensor. There is additional sensor data here http://sensorgen.info/OlympusOM-D-E-M1.html
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Rodrigo – :
Hello
Could you tell me how sensitive is this camera compared with DSLR cameras such as Canon 6D (modified for AP)
Thank you
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Sam Wen – :
mono sensor is usually 3 times more sensitive than a color sensor
so don’t compare with a mono one with color one please;)
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MY – :
Hi, how does this unit power the cooling system?
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Sam Wen – :
Just attached the image
https://astronomy-imaging-camera.com/wp-content/uploads/224-T-vs-I-1024×896.jpg
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Nathan – :
Hi Sam
what imaging capture software does AS1600 supports ? Does this support Nebulosity and MaxIm DL ?
thanks
nathan
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robert – :
what currency are your prices and what will be the cost of the asi 1600 mono cooled in Australian currency. I have a pre-order up elsewhere but willing to ditch for a better price and if you have stock/pre-order to hold for me. thank you.
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vanessa Zhang – :
Hi Robet
All the cameras we sell is US dollars.
We accept pre-order now, cameras can be shippend in May.
We offer special price for our 1600 till the end of May, 100 US dollars off retail price.
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Samo – :
Hi
Is the cooled camera sealed?
If yes, how is it with the dessicant? Is it replaceable/renewable?
Thanks!
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Sam Wen – :
Yes, it’s sealed and replaceable dessicant
you can have a look at our other cooled cameras description
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Duane – :
Hi Sam – I have a Celestron RASA (like Hyperstar). I would like to get mono version. Do you know what options there are for using filters with this camera?
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Sam Wen – :
I think the filter wheel may too big for such usage
maybe use filters inside the adapter is the only way
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EvgeniyM – :
Hi Sam,
How do you think can I use this camera for meteor capturing.
Does the driver of this camera support the UFOCapture?
Thanks.
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Sam Wen – :
yes, you can use it for meteor capturing with binning mode
UFOCapture has problem with our camera before
I am not sure how is it now
but Handyavi runs very good
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Dan – :
What is the size of the sensor? Width X Hight?
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vanessa Zhang – :
Hi Dan
It’s 4/3” ,17mm×13mm.
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Tony M – :
Hi Sam
Who is the manufacturer of the Mono sensor in the 1600mm?
Regards
Tony
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vanessa Zhang – :
Hi Tony
It’s from panasonic.
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Juergen Dirscherl – :
Hi Sam,
what is the max. QE of the monochrome version of ASI1600? Please specify.
Is there a specification of the absolute sensivity threshold in terms of number of photons per pixel so that signal=noise?
Cheers,
Juergen
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Sam Wen – :
we are not sure about the max QE, maybe around 60%
there is no absolute sensitivity threshold
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AK – :
1) ASCOM drivers are essential for any serious application. Will they be provided?.
2) Can you readout a subsection of the chip for focussing or other purposes?
2) 3.8 µm Pixesize is too small for deepsky applications, so good2x2 binning is essential.
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Sam Wen – :
yes, we provide ASCOM driver and fast ROI readout speed to help focus and planetary imaging
software bin2 bin3 bin4 is supported
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Jonathan Cheek – :
Will this camera bin 2×2 images before analogue to digital conversion?
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Sam Wen – :
the sensor provide 2x hardware bin, but I think it’s binning after digital conversion
and 10bit only
so software binning is a good option if you don’t need faster fps such like meteor capturing
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Kevin Morefield – :
Is there a filter wheel for this?
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Sam Wen – :
under development
we will take our EFW to NEAF2016
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angel ortega nyc – :
what sensor did you use in the asi1600mm cooled cameras
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Sam Wen – :
it is the same on Olympus’s DSLM: E-M1
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GH WANG – :
Hi,
May I know if there is any bayer matrix on the sensor?
I would like to do H Alpha narrowband imaging, is this camera capable of that?
Cheers,
Guohui
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Sam Wen – :
this is mono version, no bayer matrix
very suitable for narrow banding imaging
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