ZWO ASI 120MM Mini USB 2.0 Mono Camera
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 ZWO ASI 120MM Mini USB 2.0 Mono CameraZWO ASI 120MM Mini USB 2.0 Mono Camera 

ZWO ASI 120MM Mini USB 2.0 Mono Camera

£153.00
  (33 Reviews)
✓ 2 year warranty

:  

17x in stock shipped 1-2 working days

About this product

Model:  zwo_asi120mm_mini
Part Number:  ZWO ASI120MINI

Compatible with the ZWO ASiair 😊

The ASI120MM Mini is a very capable guide camera. 

Peak QE of 75% (better than the ICX618) and no Fixed-Pattern-Noise!  

It supports 35 FPS at its maximum 1280 x 960 resolution and long exposures of up to 1000s!  

Compared to ICX618-based cameras, the ZWO ASI120MM offers a faster frame rate, slightly higher visible light sensitivity and more pixels for lunar imaging. 

An anti-reflection clear optical window protects the sensor. If imaging the Moon or planets, we recommend fitting a 1.25" UV/IR rejection filter. 

The ASI120MM’s mono sensor can also be used with specialised UV or methane band filters and infrared passing filters for lunar and planetary imaging (i.e. Baader IR-Pass, Red and Orange visual filters). IR-passing filters cut short wavelengths, which prevents atmospheric dispersion from softening the image. 

Note: The ASI120MM has a Micron sensor, which might produce Newton Rings when used with solar telescopes. (Cameras fitted with Sony sensors are better in these circumstances).

Not recommended for use in Linux

FEATURES

  • 1.2 Megapixels, 1280 x 960 pixel 1/3" AR0130CS CMOS Mono Sensor
  • 3.75μm Square Pixels
  • 12bit ADC
  • Peak QE ~75%
  • 4.0e Read Noise, 13000e Full Well
  • ST4 Port
  • USB2.0 Type C
  • Weighs only 60g!

Reviews

Most popular astronomy magazines have reviewed ZWO ASI120 cameras. Please click the links below to read PDF documents:

All ZWO cameras include a 2-year warranty. 

Camera Field of View Simulator

ASI120MM Mini Astrophotography Performance

The ASI120 mini camera offers very good performance for planetary imaging and guiding. Low read noise, high dynamic range, QE peak of 75%, AR protective window and much more.

ASI120MM Mini QE Curve

We estimate the peak value for the absolute QE curve to be over 75%.

ASI120MM Mini vs ASI120MM-S

Compared with the ASI120MM-S camera, the ASI120mini is smaller, lighter, and can reach focus at the same position as an eyepiece.

USB2.0 & ST4 Ports

USB 2.0 Port: The mini camera has one USB 2.0 type C port. Type C is very popular in mobile phones and reversible, so it doesn't matter which way around you insert the plug.

ST4 Port: To connect directly to a mount's auto guide port.

Connection Drawing

  1. M28.5-CS adapter
  2. CS-C adapter
  3. 1.25″ extender
  4. 1.25″ filter

Mechanical Drawing

What's in the box?

What's in the box

  • ASI120MM Mini Camera
  • 1.25" Cap
  • 0.5m USB2.0 Cable
  • 2m USB2.0 Cable
  • 2m ST-4 Cable
  • M28.5-CS Adapter
  • 1.25" Extender
  • Quick Guide

Specifications

Sensor 1/3″ CMOS AR0130CS(Color)
Resolution 1.2Mega Pixels 1280×960
Pixel Size 3.75µm
Exposure Range 64µs-1000s
ROI Supported
ST4 Guider Port Yes
Focus Distance to Sensor 8.5mm
Shutter Type Rolling Shutter
Protect window AR coated window
Operating System Compatibility Mac, Windows, Linux
Interface USB2.0
Bit rate 12bit output(12bit ADC)
Adaptor 1.25″ / M28.5X0.6
Dimension φ36mm X 61mm
Weight 60g or 3.1 ounces (without lens)
Working Temperature -5°C—45°C
Storage Temperature -20°C—60°C
Working Relative Humidity 20%—80%
Storage Relative Humidity 20%—95%

Supported Resolutions:

Binning 1×1:

  • 1280X960@35FPS
  • 1280X720@46FPS
  • 1024X768@54FPS
  • 800X600@90FPS
  • 640X480@118FPS
  • 320X240@224FPS

Binning 2×2:

  • 640X480@35FPS

Additional resolutions can be user defined.

Downloads / Manuals

The following manuals and downloads are available for this product:

Software

ZWO Software and Drivers

 

Customer reviews

Average Rating (33 Reviews):  
Write a Review and share your opinions!

Rating (max 5):  
Good value guider
13 October 2024  | 

Bought the ASI 120mm to be compatible with my new ASIair Plus and fitted it to a Skywatcher 50mm finder via the c mount adaptor. Once I found focus it worked fine, the ASIair app makes setting up a breeze once you become familiar with it! Thanks to FLO their super service...


Rating (max 5):  
Works great on Mac OSX with Linux VM
24 August 2024  | 

Got the camera a few days ago and can confirm that it works like a charm directly on an M3 MacBook Pro natively (ZWO app and PHD2). Also works in an Ubuntu 22.04 arm64v8 VM with indiLib accessed from KStars/Ekos running natively on the Mac OS X. Please note that UTM as a virtualisation tool did not work (fatal I/O error un USB device if you try and use it in anger). However, using Parallels to create the VM works like a charm!


Rating (max 5):  
Guiding through Skywatcher 9x50 finderscope
24 May 2024  | 

Very good clear guiding, attached (using adapter ring) to a Sw 9x50 finder scope, the camera works incredibly well. However, trying to focus at night was a challenge! My solution was to download ASiStudio (mac), click on planetary imaging, and opening ASiCap. This allowed me to live view during the day, lower the gain/exposure and focus the camera, much easier IMO. My target was about a mile-ish away and it's quite surprising how sensitive focusing is, within 1/8 to 1/4 of a turn. For anyone interested in the same setup (highly recommended), the ZWO ASI 120MM Mini adapter ring is screwed in almost (1mm-ish) flush to the body of the Sw scope and remove the front focus locking ring. The focal length is 176mm to the camera sensor, I also put one layer of insulation tape neatly around the scope just before the point of focus, winding the lens/focusing assembly over the tape locking it square and firm. Guiding with PHD2 worked with no issues, and very pleased with the results.


Rating (max 5):  
Probably better suited to the ZWO mini finder-guider
16 April 2024  | 

I bought this camera and the Astro Essentials (AE) 50mm f4 guide scope as the ZWO mini finder-guider wasn't available. The normal faultless and fast service from FLO did (of course) include clouds!
Since it arrived, I have been struggling to focus the camera but finally I can smile. It all works and I can focus on brickwork textures and mortar on a wall some 500m away. This was achieved with the internal barrel of the AE Scope extended to the 25mm mark, the ASi120mm camera inserted to align the join between the red body and the black lens with end of the AE Scope and with the AE helical screw at around mid position. If you have a similar bundle, I hope these settings will remove frustration and give you a decent steer to get started.
As a MAC user, simply and directly connecting the camera's USB-C port to my MacBook laptop brought up the image when the laptop is running ASiStrudio and the ASiCAP_2_10.3 software.


Rating (max 5):  
Great Product
08 December 2023  | 

Great Product


Rating (max 5):  
Zwo asi 120mm mini USB 2 mono camera
30 November 2023  | 

Fast delivery from FLO. I have not used the camera yet, Build quality feels great, the weather in South Yorkshire not great.


Rating (max 5):  
My zwo guide camera
06 November 2023  | 

Got my new guide camera from flo.When I got to open the box, it showed a planet camera this did confused me at first, but when I open the box, it was the guide camera. It's was well packaged. I still have not tried using it yet. It did come quickly from flo, so it was a good service from them.


Rating (max 5):  
Repair
26 October 2023  | 

I have had this guide camera for over a year and a half. When it went faulty I thought I would have to buy another camera. Then realised it had a 2 year warranty. I contacted FLO who asked me to carry a basic test, then they had it collected from my house (which I had not expected) . 2 days later a new camera delivered. It’s reassuring to know that when things go faulty, the 2 year warranty is a good cover period. Well done for excellent customer support.


Rating (max 5):  
Zwo ASI 120 mm
15 May 2023  | 

Excellent after sales support, second to none, Excellent product, thanks again to the guys at First light Optics.....delivery was super fast


Rating (max 5):  
ZWO ASI 120MM
11 December 2022  | 

I bought this camera as an upgrade guide camera from my 120mc for better guiding. Excellent camera, works great. Delivery from FLO perfect as always. It arrived nestled in a foam filled box super protected. Thanks Alex and FLO for the great service.


Read all 33 customer reviews...

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