High Resolution up to 26 Megapixels
APS-C format, Astcampan AP260MC 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 AP260MM is 12.5mm under a new front design.

SKU: astpan-ap260mm-pro-1 Categories: ,


Product Overview


Photography Performance

AP260MC-Pro a cooled, back-illuminated, CMOS camera based on the Sony IMX571 sensor with native 16-bit A/D and 3.76um pixels.

  • Ultra-high dynamic range, superb full well capacity of 75ke
  • Ultra-low 1.1e- noise at high gain and 3.5e- noise at low gain
  • Zero Amp-Glow, extremely low dark current
  • 16-bit ADC sensor

APS-C Format

This is a 26MP camera with a small pixel size of 3.76, but also the incredible ability to determine a large depth of 50Ke. The sensor’s dimension is 23.5 mm * 15.7 mm. The diagonal is 28.3 mm. The small pixels and round camera body of AP260MM plus the APS-C size sensor make the AP260MM a best matching component for the HyperStar and RASA optical systems.

Native On-chip 16bit ADC

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, which will significantly improve the image sharpness and contrast, and also create smoother and more natural contrast transitions (as well as color gradients when using different types of filters). At high gain, the camera yields close to 1e-/ADU with no sample error and low read noise.

IMX571 Backlit Sensor

The back-lit CMOS image sensor of Sony improves sensitivity and noise reduction – the key factors to improve image quality. This does this by radically reflecting the basic pixel structure from the front lighting for back lighting, while the advantages of CMOS image sensors such as low power consumption and high-speed operation still retains.

With a conventional front-illumination structure, the metal wiring and transistors on the surface of the silicon substrate forming the photosensitive region of the sensor (photodiode), the photon collection performed by the on-chip lens hinder. A backlit structure minimizes the degradation of the sensitivity to the optical angle reaction, while the amount of light is increased, which occurs due to the lack of obstacles such as metal wiring and transistors in each pixel. These components were moved to the back-side of the silicon substrate.

Ultra Low Read Noise

1.1e- Noise at High gain, 3.5e- Noise at Low Gain. The AP260MM 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, AP260MM has a 2CMS mode, the readout noise can be better decreased under the extended full-well mode.

Zero Amp Glow

The back-illuminated Sony Exmor sensor has about twice the QE of similar front illuminated sensors. The AP260MM has zero amp glow. In addition, the dark current is only 0.0005e/pixel/sec @ -20C., even with high gain, long exposure imaging, you don’t have to worry about the trouble of the amp glow.

Anti-Dew Heater

In the AP260MM-Pro camera, there is a polyimide heater with the protective window. It can help avoid any potential annoying dew or freezing, depending on the environment where you capture images. The heater’s power of about 5W. If you want to save power, you can turn it off at any time.

Two-Stage TEC Cooling, Ultra-Low Dark Current

Due to the use of two-stage TEC cooling, AP260MM-Pro can reduce the temperature of the CMOS sensor to more than 35 degrees Celsius lower than the ambient temperature, and can greatly reduce the generation of dark current and sensor noise even under extended exposure time.

Unique dark current suppression technology can greatly reduce dark current noise. At a cooling temperature of 0 ° C, the dark current noise is only 0.0022e / s / pixel. This means that a 300s exposure will only produce 0.7e of dark current noise, which is less than the readout noise. At a cooling temperature of -20 ° C, the dark current can even be reduced to 0.00012e/s/pixel, this value is completely negligible.

Please note that the camera needs to be connected to an external 11-15v power supply to enable the cooling function. We recommend that you use a 3A 12V DC adapter (5.5*2.1mm, center pole positive) or 11-15V lithium battery to power the camera. If you don’t have one, please click the accessory series to buy a 12V power adapter. There are 4 different standards in different countries. Please make sure to select the correct adapter when placing an order.

USB3.0 & 256M DDR3 Memory

AP260MC-Pro is equipped with USB 3.0 transmission interface and built-in 256MB DDR3 cache to ensure stable and safe data transmission.

Mechanical Diagram

Items in The Packing Box

Drivers and Softwares

Please install the newest camera drivers and many DSO and Planetary capture softwares.


Sample Images






Technical Parameters

Sensor: SONY IMX571 CMOS
Sensor Size: 23.5mm*17.5mm
Diagonal length: 28.3mm
Resolution: 26 Mega Pixel 6248*4176
Pixel Size: 3.76µm
Max FPS at full resolution: 20fps
Bayer Pattern: RGGB
Exposure Range: 32µs-2100s
ROI: Supported
Read Noise: 1.0-3.3e
QE peak: 91%
Full well: 50000e
DDR3 Buffer: 256MB
Non-volatile memory/On camera storage: Build-in total 192K byte user-accessible space (image size up to 480X320)
Shutter mode: Rolling shutter
Adaptor: M42X0.75
Protective window glass: D60-2-AR
Interface ports: USB3.0/USB2.0
Adapter size: M42X0.75
Dimensions: 91mm Diameter
Weight:710g (25.0 ounces)
Back Focus Distance: 17.5mm
Cooling: Regulated Two Stage TEC
Delta T: -36°C below ambient
Camera Power consumption: 1.15A at 5V
Cooler Power consumption: 12V at 3A Max
Working Temperature: -5°C—49°C
Storage Temperature: -9°C—61°C
Working Relative Humidity: 0%—80%
Storage Relative Humidity: 0%—80%

Supported resolution

Max FPS at full resolution:
16Bit ADC
6248×4176 /3.5fps
4096×3072 /4.8fps
4096×2160 /6.7fps
3840×2160 /6.7fps
1920×1080 /13.2fps
1280×720 /19.3fps
640×480 /28.1fps
320×240 /51.5fps

More resolution modes can be customized.


Before using the product for the first time, please be sure to install concerned drivers and software, and read quick guide or manuals.



Delivery via ePacket/China Post Registered Air Mail/EMS will take approximately 60-80 days. These delivery channels cannot be guaranteed, due to force majeure.

Fast delivery (payment amount ≧ 199USD) for free

Fast delivery (payment amount < 199USD) : $20.00 (We need to charge for express delivery.)

If you cannot receive the airmail package after 2 months, please notify us as soon as possible: sales@astcampan.com

Detailed Description

Fast delivery: We will choose DHL, UPS, FedEx and other delivery. Usually you will get the package within a month.

For the customers from Brazil and Chile, please leave a message to provide your CPF or CNPJ, which the custom of Brazil and Chile request for providing your CPF or CNPJ.

For the customers from Russia, please provide your complete English name and English shipping address.

Tracking URL

DGM website: http://webtrack.dhlglobalmail.com/?locale=en-US

China air mail website: http://www.17track.net/en


The price list on our website is in U.S. dollars, excluding tax.

Please note that buyers are responsible for paying relevant taxes and fees, such as import taxes, value-added tax (VAT), customs service fees, etc. Additional fees can be charged upon delivery.


Warranty and Return Policies

We provide a 3-year warranty for our products, during this period, we will provide free maintenance services. After the warranty period ends, we will continue to provide repair maintenance support and technical services. We do not provide any replacement unless Astcampan company confirms that the product is damaged and cannot be used when it arrives.

This warranty does not apply to damage caused by abuse or misuse, nor does it apply to damage caused by falling or any other transportation failure after purchase.

The customer must pay the shipping fee when returning the camera for repair or replacement. If we confirm that you can get a replacement of all the purchased goods, you should return the damaged good with all accessories, manuals, etc., and these items must be properly packaged.

If your received camera malfunctions or is a faulty camera, please contact us via email as soon as possible: sales@astcampan.com . Please describe the problem and faults in detail, we will do our best to help you solve the problem and faults. In most cases, these problems are caused by incorrect driver installation or software configuration.

If your camera needs warranty repair, we will provide you with a repair and maintence approval number. We reject any returns without a repair and maintence approval number!

For customers who purchase cameras from our distributors, the distributor is responsible for providing customer service for you.



If you have questions, queries and suggestions, or you also can give answer or comment in this communication area, please post here!

  1. Pane 1 Title

    Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.

  2. Pane 2 Title

    Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.

  3. Pane 3 Title

    Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.