The ZWO ASI 432MM is a monochrome lunar, planetary or solar camera that largely replaces the older ASI174MM. It is based on a Sony IMX432 backlit sensor which has large 9µm pixels arranged as 1608 x 1104, meaning the sensor is 14.5 x 9.95mm.

The ASI432MM is packaged with an M42 tilt adjuster, specifically to manage Newton’s rings in solar images. These are the darker lines that can spread across the image.

The camera has a global shutter, meaning all pixels on the sensor fire at the same time (compared to a rolling shutter where the pixels fire in sequence). This gives it a very high FPS of 120 at full resolution and makes it suitable for imaging of fast-moving objects such as the ISS and other satellites.