ZWO ASI533MM - powerful mono astro camera of the latest generation

ZWO has taken another step forward with this new camera. The monochrome sensor with a diagonal of approx. 16 mm can be used on almost every telescope. Due to the square shape, the corrected image field of the telescope is optimally used. This even allows the use of many telescopes without a corrector.

A special feature of the ASI533MM Pro is the zero-amp glow circuit, which eliminates the amplifier glow that occurs with longer exposure times. This would brighten areas of the image at longer exposure times. Especially with this camera, the electronics also reduce the effect of external stray light, so you can take longer exposures under light-polluted skies.

One of the outstanding features of the ASI 533MM Pro is its sensational light sensitivity. The QE of 80% by the BACK ILLUMINATION technology and the very low amplifier glow make the camera very suitable for all astronomical applications, but especially for deep-sky astrophotography. This allows you to create deep L-RGB or narrow band nebula images in just one night.

Further advantages and product features of the ASI 533MM Pro camera:

• USB 3.0 for fast download - can also be used with USB 2.0
• DDR3 memory buffer for stable data transfer with USB2.0 - minimizes amplifier glow
• One of Sony´s most light-sensitive CMOS sensors
• High resolution by 3.76 µm pixels - ideal for fast and sharp telescopes like apos, Hyperstar, Celestron Faststar, Newtonian telescopes, ...
• Supplied with AR clear glass filter - full transmission also in infrared. If the IR is to be blocked, an IR cut filter is required.
• Distance T2 connection thread (female thread) to camera sensor: 17.5 mm
• Distance front surface to sensor (using male thread): only 6.5 mm
• High sensitivity - QE over 80% - ideal astronomy camera for low-light objects
• 14-bit ADC ... you reach a depth like with CCD cameras, but with a much higher sensitivity.

Back illumination technology

Sony?s back-illuminated CMOS image sensor improves sensitivity and noise reduction ? the key factors to enhancing image quality, while radically realigning their fundamental pixel structure from front-illumination to back-illumination. It has retained the advantages of CMOS image sensors such as low power consumption and high-speed operation.

The backside exposure improves the light absorption and increases the amount of light at the same time. This allows significantly shorter exposure times and leads to an improved quantum efficiency of 80%.

Sony has newly developed a unique photo-diode structure and on-chip lens optimized for back-illuminated structures, that achieves a higher sensitivity and a lower random noise without light by reducing noise, dark current and defect pixels compared to the conventional front-illuminated structure.

Zero amp glow

Traditional CMOS sensors produce a weak infrared light source during operation quite often seen in the corner of uncalibrated images as the tell tale signs of ?amp glow?. As the ASI533MM Pro uses zero amp glow circuitry, you won?t have to worry about amp glow even when using high gain, long exposure imaging.

Optimal support before and after the purchase through APM Telescopes:

We work with the cameras ourselves and can offer you optimal advice. Which camera fits to your telescope, how do you achieve the optimal adaptation? Teleskop-Service is one of the largest ZWO dealers. Through our contacts we also offer the best possible service after the purchase.

Good storage is an important prevention against dew and also extends the life span.

After use, put the camera immediately into the TS Protect Case and add some silica gel. During storage, the silica gel will suck the moisture out of the camera. At the same time, the penetration of humid room air is prevented. Dry storage even allows the small dry tablets in cooled cameras to partially regenerate. Your camera or accessories are always ready for you in optimal condition. You can find the silica gel and the case in our product recommendations.

Downloads, drivers:

ZW Optical provides software and drivers online for free download.

Software and drivers for all ZWO cameras

Frequently asked questions about ZWO cameras:

The FAQ area is constantly updated by ZWO, here you will find answers to many questions.

FAQ about ZWO cameras

ZWO Users Forum

Manuals for ZWO products:

The manuals page is constantly updated by ZWO, here you can find user guides for ZWO products.

Link to the manuals

How to clean my ZWO camera:

The manufacturer provides a manual that covers how to clean an ASI camera and regenerate the desiccant tablets: Please click here.

Astrophotographic results obtained with this camera on Astrobin

Here you can find some astrophotographs made with this camera model: Link to Astrobin