QHYCCD - QHY268M CMOS 26mp Monochrome Cooled Camera

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The QHY268M/C is a cooled, back-illuminated, CMOS camera based on the Sony IMX571 sensor with native 16-bit A/D and 3.76um pixels. The BFL of QHY268M is 12.5mm under a new front design.


SKU: QHY-QHY268M
Manufactured by:
QHYCCD
 

Product Description

QHYCCD QHY268M CMOS 26mp Monochrome Cooled Camera

High Resolution

26 Megapixels

APS-C format

The QHY268M/C is a cooled, back-illuminated, CMOS camera based on the Sony IMX571 sensor with native 16-bit A/D and 3.76um pixels. The BFL of QHY268M is 12.5mm under a new front design.

Native 16-Bits

On-chip 16-bit A/D

65536 Levels

The Sony IMX571 sensor has on-chip 16-bit A/D for highest resolution of greyscale. The output is real 16-bits with 65536 levels. Compared to 12-bit and 14-bit A/D, 16-bits provides higher sampling resolution. At high gain, the camera yields close to 1e-/ADU with no sample error and low read noise.

High Dynamic Range

75ke full well

Vivd colors

Great full well brings vivid colors. One benefit of the back-illuminated CMOS structure is improved full well capacity. This is particularly helpful for sensors with small pixels. Even with unbinned, the 3.76um pixels of the QHY268M/C has a superb full well capacity of 75ke-.

Ultra Low Read Noise

1.1e- Noise at High gain

3.5e- Noise at Low Gain

The QHY268M/C has only 0.7 electron of read noise at highest gain and 6.8 FPS at full resolution readout speed. One electron of read noise means the camera can achieve a SNR>3 at only 4 to 6 photons. This is perfect performance when conditions are photon limited, i.e., short exposures, narrow band imaging, etc., making this large area sensor ideal for sky surveys and time domain astronomy. Besides, QHY268M/C has a 2CMS mode, the readout noise can be better decreased under the Extended Fullwell Mode.

Back-Illuminated, High QE

Zero Amp-Glow

Extremely Low Dark Current

The back-illuminated Sony Exmor sensor has about twice the QE of similar front illuminated sensors. The QHY268M/C has zero amplifer glow. In addition the dark current is only 0.0005e/pixel/sec @ -20C.

Specifications

Name QHYCCD - QHY268M CMOS 26mp Monochrome Cooled Camera
Manufacturer QHYCCD
Model QHY-QHY268M
A/D Converter Native 16-bit
Backfocus Distance 12.5mm (±0.3
Computer Interface USB3.0
Cooling Dual Stage TEC cooler (-35C below ambient)
Dark Current 0.0005e/pixel/sec @ -20C & 0.001e/pixel/sec @ -10C
Effective Pixels 26 MP
Exposure time 30 us - 3600 seconds
Frames Per Second (fps) Full Resolution - 6.8FPS @8BIT & 6FPS @16BIT, 2048lines - 13.6FPS @8BIT & 11.5FPS @16BIT, 1080lines - 25.4FPS @8BIT & 19.5FPS @16BIT, 768lines - 35FPS @8BIT & 25FPS @16BIT, 480lines - 50FPS @8BIT & 34FPS@16BIT
Full Well Capacity >60ke- to >87ke-at low gain (depending on mode)
Gain <1e-
Imaging Area 6280 x 4210
Memory 64MByte Flash Memory
Pixel Size 3.76um
Read Noise 1.98e- High Gain and 7.5e- Lowest Gain
Sensor Sony APC-C CMOS IMX571
Sensor Size APS-C format
Sensor Type Back Illuminated (BSI)
Shutter Type Electronic
Telescope Interface M54/0.75

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