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QHYCCD QHY294C 11.6MP Cooled Color CMOS Telescope Astrophotography Camera

Estimated Delivery: 7-18 Days (Pre-Order)
Camera
QHYCCD
QHY294C
The QHY294C uses a 4/3-inch back-illuminated cooled color CMOS sensor, 14-bit A/D. 6,8e readout noise in lowest gain settings, 1.6e- read noise near unity gain and 1e- read noise at highest gain. T...
$1,329

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The QHY294C uses a 4/3-inch back-illuminated cooled color CMOS sensor, 14-bit A/D. 6,8e readout noise in lowest gain settings, 1.6e- read noise near unity gain and 1e- read noise at highest gain. This camera is a dedicated cooled camera with high performance for both QE, dark current and readout noise.

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 QHY294C has a full well capacity of nearly 65,000 electrons with 4.63um x 4.63um pixels, almost the same as an interline CCD camera with 9um pixels.

The QHY294C produces 16.5 high resolution frames per second, 11.6 Megapixels with 14-bit A/D. Higher rates are achieved in ROI mode, for example, 41 FPS at 1080 lines.

The QHY294C uses QHYCCD's proprietary low dark current control technology. This technology significantly reduces the dark current noise in our CMOS cameras. The QHY294C has super low dark current as a result, lower than many CCD cameras, allowing for very long exposure times.

The QHY294C's CMOS sensor has a dual gain mode, HGC (high gain) and LGC (Low gain). The QHY294C will switch the two modes automatically when the gain is set to 1600 you will get the benefits of the ultra low read noise (1e- to 1.6e-) of the HGC mode and a full well capacity of about 14.5ke- at the switch point setting.

The QHY294C 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.

The QHY294C has the same body design and mechanical interface and the QHY163. It has a short back focal distance allowing the use of QHYCCD's 0.5mm-27mm spacers (step size 0.5mm) for flexibility in setting up your optical train.

The QHY294C has an internal 256MByte high speed DDR3 image buffer. This is more than enough for one frame and it significantly reduces any issue of lost frames due to a busy computer CPU or slow USB communication packet errors.

About the IMX294 Sensor

The Sony Starvis IMX294CJK Exmor R is a 21.63 mm diagonal (Type 4/3), 10.7 megapixel, back-illuminated color CMOS sensor. Sony has commercialized the IMX294CJK Type 4/3 back-illuminated CMOS image sensor for low light applications. The IMX294CJK is the first in-house image sensor to adopt the Type 4/3 format and realize output of the number of pixels needed for 4K video at 120 frame/s (in ADC 10-bit output mode). In addition, use of a large-size pixel achieves SNR1s of 0.14 lx, and use of a Quad Bayer pixel structure realizes a High Dynamic Range function with no time difference, enabling video imaging with a wide dynamic range.

STARVIS is a trademark of Sony Corporation. The STARVIS is back-illuminated pixel technology used in CMOS image sensors for low light applications and realizes high picture quality in the visible-light and near infrared light regions.

Exmor R is a Sony's CMOS image sensor with significantly enhanced imaging characteristics including sensitivity and low noise by changing fundamental structure of Exmor™ pixel adopted column parallel A/D converter to back-illuminated type.

Supports Type 4/3 4K output

The IMX294CJK adopts Type 4/3 as the optical size, and supports various output formats (angle of view) including 10M (3704 × 2778) for aspect ratio 4:3, UHD (3840 × 2160) for 16:9, and 4096 × 2160 for 17:9. In addition, the A/D converter can be selected from 10 bits, 12 bits, and 14 bits according to the application.
Exceptional low-illumination performance 
Exceptional low-illumination performance of SNR1s: 0.14 lx is realized by use of a large-size optical system and by expanding the area per pixel to 4.63 μm. This makes the IMX294CJK ideal for applications that require low-illumination performance.

Quad Bayer Coding HDR

The IMX294CJK uses a Quad Bayer structure, and outputs data binned in 2 × 2 pixel units in normal mode. In HDR mode, integration can be divided into long-time integration and short-time integration for each 2 pixels in the Quad array. In this case there is no time difference between long-time integration and short-time integration, which realizes HDR with little blending offset when imaging moving subjects.

 

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

Items that have been opened, damaged or are otherwise unsaleable will be subject to a minimum 10% restocking fee, to be assessed by Telescopes Canada upon receipt of the returned goods

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

Typographical Errors and Order Cancellations

Telescopes Canada reserves the right to cancel an order due to an error in pricing by Telescopes Canada or one of our suppliers, equipment being no longer obtainable, or other events which are out of our control.

Client-Initiated Cancellations

Client-initiated order cancellations are accepted prior to delivery of the equipment to the customer, thereafter it is a return.
Model QHY294C
CMOS Sensor SONY IMX294 BSI CMOS 
AR Coating On Sensor Yes
Pixel Size 4.63um * 4.63um
Effective Pixel Area
4164 * 2796
Effective Pixels
11.6 MP
Effective Image Area
19.28mm * 12.95mm
Fullwell
65ke-
AD Sample Depth
14bit (output as 16bit and 8bit)
Sensor Size
Typical 4/3"
Full Frame Rate and ROI Frame Rate
4164*2796 16.5FPS@14BIT
2160lines (eg.4164*2160,4096*2160) 21FPS
1080lines (eg.4164*2160,1920*2160) 41FPS
960lines (eg.4164*960,1280*960) 46FPS
768lines (eg.4164*768,1024*768) 56FPS
480lines (eg.4164*480,640*480) 87FPS
240lines (eg.4164*240,320*240) 156FPS
100lines (eg.4164*100,240*100) 290FPS

*Note: QHYCCD has optimized the CMOS drive frequency and limited the max frame rate. The CMOS sensor may not work under the maximum frequency to ensure the better noise performance. If you need the customized higher frame rate version please contact QHYCCD.
Readout Noise 1.6e - 1.0e@HGC moe  6.8 - 4.2e@LGC mode
Dark Current 0.005e/pixel/s@-20C    0.007e/pixel/s@-15C 
0.009e/pixel/s@-10C
Exposure Time Range 60us - 3600sec
Anti-Glow Control Yes
Shutter Type Electric Rolling Shutter
Computer Interface USB 3.0
Built-in Image Buffer 256MB DDR3 memory
Cooling System
Dual Stage TEC cooler(about -30 to -35C below ambient)
Anti-Dew Heater
Yes
Telescope Interface
M42/0.75
Optic Window Type

AR+AR High Quality Multi-Layer Anti-Reflection Coating (For color camera user need to add a UV/IR filter in the light path)

Back Focal Length
17mm±0.5
Weight
650g