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  • QHYCCD COLDMOS QHY294M Pro mono camera QHYCCD COLDMOS QHY294M Pro mono camera

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for order at least €500

QHYCCD QHY294M Pro mono camera

Product code: QHY294M

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Quick Overview

QHYCCD QHY294M Pro camera uses a Sony IMX492 back-illuminated monochrome sensor with 23.2mm diagonal and high sensitivity, 4164 x 2796 resolution, 14-bit A/D, very low 1e- read noise at highest gain and a powerful cooling system (down to -35°C in respect to ambient temperature). All of this at a very affordable price that makes the QHY294M Pro a great camera for astrophotography.

Availability: In stock in Italy headquarters

22% tax incl
if you pay by bank transfer €1,421.05


Back-illuminated sensor with 4.6um pixels and 64ke- Full Well

Benefiting from the back-illuminated structure, the area around the photo-diode is reduced so that for a given pixel size the BSI sensor provides a greater full well capacity compared to a front illuminated sensor. The QHY294M Pro has a full well capacity of nearly 65,000 eletrons with 4.63um x 4.63um pixels, almost the same as an interline CCD camera with 9um pixels.



QHYCCD QHY294M Pro mono camera



Expanded Pixel Mode: 11.7MP to 46.8MP

The IMX492 chip has 46.8 million 2.315um pixels, which Sony 2x2 bins on-chip to create the sensor's advertised 11.7 million 4.63um pixel array. The QHY294 Pro series camera is capable of locking and unlocking the on-chip binning to provide two readout modes. The first mode reads the sensor "locked" mode to produce 11.6mp images with 4.63um pixel size and 14 bits per pixel. The second read mode unlocks the binning to produce 46.8mp images with 2.315um pixel size at 12 bits per pixel.



High QE and Low Readout Noise

Preliminary tests indicate that this sensor has an outstanding performer with extraordinarily high QE, low read noise, and low dark current. The QHY294M Pro has 6.8 to 6.9e- read noise at the lowest gain, 1.6e- read noise near unity gain, and 1.0e- read noise at highest gain, with great dynamic range!



QHYCCD QHY294M Pro mono camera



Anti-Dew Technology and flexible adapters

The QHY294M Pro benefits from more than a decade of cooled camera design experience. QHYCCD has implemented full dew control solutions. The optical window has a built-in dew heater and the CMOS chamber is protected from internal humidity condensation. QHY294M has a short back focal distance allowing for flexibility in setting up your optical train.



QHYCCD QHY294M Pro mono camera



QHYCCD QHY294M Pro mono camera: scope of delivery

- QHYCCD QHY294M Pro mono camera
- T2-50,8mm adapter
- USB 3.0 cable
- 220V power unit



QHYCCD cooled CMOS cameras comparison

In this table we have summarized main features of QHYCCD's cooled CMOS cameras to allow you to easily compare and choose the best one based on your telescope.

Technical specifications

Type: Camera CMOS raffreddata
Sensor Monochrome
Sensor IMX492
Resolution 4164 x 2796
Sensor dimensions (mm) 19,3 x 13
Sensor diagonal (mm) 23.2
Pixels dimensions (µm) 4.6
A/D converter 14 bit
Cooling -35°C rispetto a T ambientale
Readout Noise (e-) 1e- at high gain
ST4 integrated autoguide port No
Telescope interface Filetto T femmina (42x0,75)
Connection to PC USB 3.0
Power External 12V 5A
Backfocus (mm) 17mm
Weight (gr.) 650g

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