QHY 5L-II Monochrome Planetary & Autoguider Camera

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QHY 5L-II Monochrome Planetary & Autoguider Camera
  • The QHY5L-IIM Monochrome Camera is a great choice for imaging of the moon & planets, as an all-sky camera, or even as an entry level deep sky camera!
  • The 1.3 MP Aptina MT9M034 sensor has a 1/3-inch, 1280 x 960 array consisting of 3.75um square pixels.
  • The QHY 5L-IIM uses a CMOS sensor, but has quantum efficiency of 74%, even better than some CCD-based cameras.
  • Readout noise can get as low as 6 electrons, and the image is clear and uniform even under high gain due to the sensor's on-chip FPN, or Fixed Pattern Noise, calibration function.
  • Body design is similar to that of a 1.25" eyepiece, which makes it very lightweight at only 1.6 ounces!


QHY5L-IIM Monochrome Planetary & Autoguider Camera

The QHY 5L-II monochrome camera uses the 1/3 inch, 1.2MP Aptina MT9M034 CMOS sensor. The 1280 x 960 pixel array of 3.75um pixels are capable of video speeds of 30 frames per second at full resolution. The QHY 5L series camera has a c-mount interface for flexibility - choose from a variety of optional lenses.

As a member of the QHY5-II series, the QHY5L-II design retains the 1.25" (eyepiece size) form factor and the standard ST-4 Opto-isolated guide port. The high QE of 74% plus the high speed USB2 port enable very fast frame rates, making this an ideal planetary camera. The camera uses a single USB port for camera control and power to provide simplicity and ease of use. The USB communication port has been updated to take advantage of the full down load speed and to eliminate noise that had been caused by the USB port in the past. This camera is an extraordinary device for both auto guiding and planetary photography, all at a very attractive price point. The QHY5L-IIM camera comes with a parfocal adjustment ring, 1.25" extension tube / filter holder, and a USB and guide cable.

QHY5L-II Mono Camera Specifications

  • CMOS Sensor: MT9M034 Mono
  • CMOS Size: 1/3 inch
  • Effective Pixels: 1280 x 960
  • Pixel Size: 3.75um*3.75um
  • Readout Type: Progressive Scan
  • Shutter: Electric Rolling Shutter
  • Exposure Range: 20 microseconds to 10 minutes
  • Maximum Frame Rate: 1280 x 960 @ 30FPS, 1024 x 768 @ 44FPS, 800 x 600 @ 75FPS, 640 x 480 @ 106FPS, 20 x 240 @ 200FPS
  • Pixel Binning: 1x1
  • Peak QE: 74%
  • AD Conversion: 8bit/12bit (output) , 14bit (Internal)
  • Pixel Rate: 12/24/48/72MHz
  • Mechanical Size: 1.25" eyepiece style (31.6mm)
  • Optical Window: 22mm AR+AR coating glass
  • Back Focus: 17.5mm(when use standard optic window)
  • Weight : 45g (camera body only)
  • Power Consumption: 0.64W
  • Guider Interface: Opto-Isolated 6pin RJ11
  • Computer Interface: USB 2.0


Additional Information

Additional Information

Manufacturer QHY
Color or B&W? Monochrome (B&W)
Sensor Type CMOS
Series QHY Planetary CMOS Cameras
Pixel Size < 5 Microns
Warranty 2 Year Warranty
Sensor Manufacturer Aptina Imaging
# of Sensors Single Sensor
Front or Back Illumination Front Illuminated
Sensor Model MT9M034
CCD Class Standard
Quantum Efficiency 74%
Pixel Size in Micrometers 3.75um x 3.75um
Pixel Array 1280 x 960
Minimum Exposure Time 20 microseconds
Maximum Exposure Time 10 minutes
Integrated Guider? No
Shutter Type Rolling Electronic
Filter Wheel No
Interface USB 2.0
Camera Body Dimensions 31.6mm D x 52mm L
Camera Weight 45g

Customer Reviews 1 item(s)

Great camera for guiding
I use the QHY5-II with a 60mm guiding scope and it is very sensitive and works great with PHD2. Although I just started guiding this camera seems to pickup stars when focused very well. After getting used to it and adjusting settings in PHD2 I can finally take exposures longer than 90sec. Service at OPT of course is always outstanding also!
1= Houston, We Have a Problem & 5= It's Out of This World
Review by GJewison / (Posted on 9/30/2015)
Included Items

Included Items

  • QHY 5LII Monochrome Camera
  • USB cable
  • ST4 guide cable
  • I.25" filter holder
  • Parfocal ring
  • Metal Storage Box
Questions & Answers

Product Questions

Can I use this camera "out of the box" (no modifications or additional hardware required) with an Orion 50 mm guidescope?
If no software comes with this camera, then what software will work for capturing AVI video and long exposure? 
How long are the USB and ST-4 cables that come with this camera?
Can this camera be used "out of the box" with a Baader 10x60 Vario?
I have a qhy.5L mono, I use it for auto guiding, sometimes it shows the background black and stars quite clearly defined, more often than not, the background has a banded white cast, to the screen and refuses to calibrate for guiding. I don't seem to be able to make the background darker with the gain slider, any suggestion as to what I'm doing wrong?
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