QHY5III715 Colour Camera
QHY
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Overview
The QHY5III715C is an ultra-high resolution, back-illuminated color camera with extremely low read noise. The sensor has a 1/2.8-inch optical format, similar to the QHY5III462C. However, the QHY5III715C has four times as many pixels as the QHY5III462C, offering 4K resolution with 1.45μm pixels.
This makes the new QHY5III715C ideal for smaller, short focal length refractors. The exceptionally small pixels provide a field of view (FOV) of less than 1 arcsecond at focal lengths of 12 inches (300mm) or longer. The QHY5III715C inherits all of the updates and improvements of the QHY5III Series Ver. 2 line of cameras.
Extended Near-Infrared Sensitivity
The latest sensors feature deeper pixel wells, enhancing sensitivity to red and near-infrared (NIR) light. These sensors achieve peak NIR sensitivity nearly equal to visible light.
512MB DDR3 Buffer
The QHY5III (Ver. 2) cameras include a 512MB DDR3 buffer, doubling the memory of many deep-sky astrophotography cameras with 256MB. This reduces computer transmission load, ideal for high-speed planetary imaging.
New Front-End Design
The redesigned QHY5III (Ver. 2) cameras offer improved compatibility with a slim 8mm BFL, making them easy to integrate with off-axis guiders (OAGs). The 1.25-inch threaded adapter supports filters and interchangeable top glass allows seamless use of CS or C-mount lenses. A 1.25-inch filter wheel adapter connects monochrome cameras to QHYCFW3-S filter wheels.
USB 3.2 Gen 1 Type-C Interface
Upgraded to USB 3.2 Gen 1 Type-C, these cameras offer better durability and flexibility than the previous USB 3.0 Type-B. Use high-quality cables to avoid performance issues.
Universal Guiding Interface
The cameras now feature an ST-4 compatible guiding interface, replacing proprietary designs, allowing easy replacement of guiding cables at low cost.
Indicator LED
An indicator LED at the back signals camera status using different colors for diagnostics. It remains off during normal operation to prevent light contamination.

Specifications
Attribute | Details |
---|---|
Model | QHY5III715C |
Image Sensor | Sony IMX715 |
Mono/Color | Color Only |
FSI/BSI | BSI |
Sensor Size | 5.6mm x 3.2mm |
Pixel Size | 1.45μm x 1.45μm |
Effective Pixel Area | 3840 x 2192 |
Effective Pixels | 8.4 Megapixels |
Full Well Capacity | 5.7ke- |
Read Noise | 0.87e- to 2.17e- |
A/D | 12-bit (output as 16-bit and 8-bit) |
Built-in Image Buffer | 512MB DDR3 Memory |
Full Frame Rates | 42FPS@8bit, 23FPS@16bit |
ROI Frame Rates | 1920Lines, 83FPS@8bit, 47FPS@16bit 640Lines, 99FPS@8bit, 99FPS@16bit |
Exposure Time Range | 11μs - 900sec |
Shutter Type | Electronic Rolling Shutter |
Computer Interface | USB3.0 Type-C |
Guide Port | Standard ST-4 Style |
Telescope Interface | 1.25-inch, with CS and C-Mount |
Optical Window | AR Anti-reflection Glass |
Extra Filter | – |
Back Focal Length | 17mm (with adapter); 8mm (without adapter) |
Weight | 90g |
Let customers speak for us
from 119 reviewsGreat addition to my telescope
Makes looking at the sky much easier
Good quality , Great value .

Worked as designed and can be used on other rigs as well

It was exactly what I needed and would have taken me ages to source. Thanks so much for a great service!
Happy with the sales integration with staff. Goods arrived on time and in good order. Looking forward to a bright future dealing with new Astronomy supplier

Exactly what was needed with fast delivery. Great trade!!!

Much better than my old x3 Barlow which was to powerful for my Tasco Galasee 144mm/500mm telescope. Clear and sharp.

Yeah, not bad at all. Nice crisp and clear and far more ergonomic on my dobsonian than a straight through. Price is on point, well worth it.

I bought a barlow lense and it's perfect for telescope viewing. Customer service was great too. Would highly recommend.

Excellent help and advice

Arrived quickly and was well packed. In perfect order. Easy to read, and easy to use. Makes finding stars homes very simple.

I bought the UHC Filter and picked up the order from Astronz office. I spent some time at the office and with Andrew. It was a delightful time to share our experience. I used the filter for several nights for observation. I took photos with my smartphone with the filter; the result is impressive, though not professional.

I screwed the T-Ring T2 to a 55mm M42 extension tube on my telescope. Then I attached my Canon EOS 800D to the bayonet end and noted a rather loose fit. I used the small allen key supplied with the adapter to loosen the three grub screws on the adapter. Firmed up the loosness fit and re-tightened the grub screws. Very satisfied with the quality.

Very good product and good service delivering it promptly.

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