Astronomy Specialist

ZWO ASI 183GT [MONO]

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The ZWO ASI 183GT incorporates a 5 positions filter wheel and the ASI 183 MM, the cooled camera with the smallest pixel out of all the ZWO cameras. This features makes this camera ideal for telescopes with short focal lengths.

ASI 183MM

The ZWO ASI 1600GT contains the Sony IMX183 CMOS monochrome sensor which has a diagonal of 15.9mm and a resolution of 20.18 MPx. The internal electronic filter wheel can accommodate both 1.25" and 31mm filters, it is CNC machined and fully blackened to minimize internal reflection.This version of the ASI 183 has a reduced back focus compared to the ASI 183MM + standard filter wheel and it can play an important role for telescopes that have a limited back focus such as Newtons or in instruments where the distance between the sensor and the reduced/corrector is limited. The maximum allowable height of the 1.25" filter is 7mm + 2.5mm for the thread.

The ZWO PRO cameras incorporates a 256MB DDR3 memory buffer that improves data transfer reliability and it minimizes the amp-glow caused by slow data transfer speeds.

The Sony’s back-illuminated Exmor R technology, applied to the Sony IMX183CMOS sensor, delivers an excellent quantum efficiency that reaches a remarkable 84% around 525Nm. In Ha channel, the QE is over 60%.

A higher QE means more of the light converted into signal. Across the entire visible spectrum, the QE is never below 50%.

ASI 183GT quantum efficiency

The USB 3.0 Port provides 5Gbps bandwidth and lets the camera run at 19 fps (12bit, normal mode) or 19fps (10bit, high speed mode) at full resolution (20.18 Mega). 

The USB 2.0 Hub allows to connect 2 USB controlled accessories such as a filter wheel, a guiding camera or an electronic focuser, reducing the amount of cables that run directly from your computer. 

The camera body incorporates 24 cooling fins and two fans for an efficient cooling. The 2 stages TEC cooling system allows a ΔT of 40°C-45°C below air temperature. The cooling system requires an external power supply of 12V at 3-5A with a 2.1×5.5 mm connector (positive tip).

The ASI 183MM can be powered with a standard lead battery or a DC source between 9-15V.

ASI 183MM GT

The dark current of the ASI183 is extremely low, based on our test results. 

ASI 183MM GT


 
Sensor

1″ CMOS Sony IMX183CLK-J/CQJ-J - monochrome

Resolution

20.18 Megapixels 5496x3672

Pixel size

2.4 µm

Sensor size

13.2 mm x 8.8 mm (15.9 mm diagonal)

Quantum efficiency

84%

Exposure range

32µs-2000s

Read noise

1.5 ~ 3.0 e (@ 30 dB)

Full Well Capacity

15,000 e

Bit rate

12 bit

Speed

19 fps

Shutter type

Rolling shutter

Cooling

ΔT of 40°C-45°C

Memory buffer

256Mb DDR III

ROI

Supported

Compatibility

Mac, Windows, Linux

Protecting window

D32-2-AR coated

Ports

USB 3.0 / USB 2.0

Back focus

26.50 mm

Connections

M42 x 0.75

Dimensions

60 mm x 110 mm x 110 mm

Weight

840 g

Power supply

9-15V 3 A  (2.1×5.5 mm  connector)

SKU

ASI183GT


ASI 183MM GT


ASI 183MM GT
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