page contents


QHY 268M Mono CMOS Cooled Camera APS-C (IMX571) 3.76µm - INTRODUCTORY OFFER!

In stock

Normal Price £2,099.00
You save £300.00
Price includes VAT, plus delivery


The QHY268M is the baby brother to the extreme QHY600M. Its IMX571 sensor featuring similar technology in the smaller APS-C format. Like the IMX455, the 571 is back illuminated (increased sensitivity and no residual bulk image) and natively 16bit for wide dynamic range. The small 3.76µm pixels provide high resolution and are well matched to shorter focal lengths scopes typically used for wide field imaging. Its physical format also make it an ideal combination for use with FASTAR equipped SCT's and the latest RASA systems.

Combined with zero amp glow and a heated chamber window, the QHY268M is the state of the art in performance for the APS-C format.

As with all QHY Mono cameras, the QHY268M features a dedicated connector for driving a QHY filter wheel.

Short Back Focus

The QHY268M features a very short back focus design of only 12.5mm. This allows a QHY filter wheel to be bolted directly to the face of the camera. This feature allows systems needing 55mm back focus to be created that include a QHY filter wheel AND Off Axis Guider. It also permits you to use Camera lens based systems as short as 44mm with a filter wheel (but no OAG). See the above images for examples of connectivity.


Model QHY268M

Sensor SONY IMX571 APS-C CMOS Sensor

AR Coating On CMOS chamber Yes. Multi-layer AR coating

Pixel Size 3.76µm x 3.76µm

Effective Pixel Area 6280 x 4210 pixels (inc overscan)

Effective Pixels 26 megapixels

Effective Image Area 23.5mm x 17.5mm

Fullwell 51ke- (75ke- + in extended mode)

AD Sample Depth 16 Bit

Full Resolution frame rate 6 FPS@16BIT

2048 lines 11.5 FPS@16BIT

1080lines  19.5 FPS@16BIT

768lines     25 FPS@16BIT

480lines     34 FPS@16BIT

Readout Noise 0.7e-@ High gain / 3.5e-@ Low gain

Dark Current 0.0005e/pixel/sec @ -20C

Exposure Time Range 30us-3600sec

Anti-Glow Control Yes, Zero Glow

Shutter Type Electric Rolling Shutter

Computer Interface USB3.0

Built-in Image Buffer 1GB / 2GB DDR3 Memory

Cooling System Dual Stage TEC cooler(-35C° below ambient)

Anti-Dew Heater Yes

Silicon Gel Socket Yes

Telescope Interface QHY Hole Pattern with optional front face adaption.

Optical Window Type AR+AR High Quality Multi-Layer Anti-Reflection Coating (Camera needs a UV/IR filter in the light path)

Back Focal Length 12.5mm from face

Weight TBA

Power Consumption ~ TBA


Product Note Status Price
QHY5III178M 1/1.8" STARVIS BSI Mono CMOS Sensor USB 3.0 (IMX178) 2.4µm QHY5III178M 1/1.8" STARVIS BSI Mono CMOS Sensor USB 3.0 (IMX178) 2.4µm
Use as a guide camera with the OAG-M
£329.00 *
QHY5III174M 1/1.2" Mono CMOS Sensor USB 3.0 (IMX174) 5.86µm QHY5III174M 1/1.2" Mono CMOS Sensor USB 3.0 (IMX174) 5.86µm
Use as a guide camera with the OAG-M
£539.00 *
QHY CFW3 M-US 7 x 36mm Filter Wheel QHY CFW3 M-US 7 x 36mm Filter Wheel
Ideal filter wheel for smaller sensors
£299.00 *
QHY OAG-M Medium Off Axis Guider QHY OAG-M Medium Off Axis Guider
Matched Off Axis Guider for QHY Camera
£219.00 *
Prices includes VAT, plus delivery
Display accessory details

Browse these categories as well: Deep Sky Cameras, QHY, January Offers!!!