ZWO Asi678mm

The ZWO ASI678MM is an uncooled monochrome astro camera for demanding lunar and planetary photographers seeking maximum sharpness and sensitivity. The camera features the Sony IMX678 CMOS sensor and offers 8.3 megapixels (3840 x 2160) in a compact design. Thanks to the small 2.0 µm pixels, this camera delivers excellent resolution, even at short focal lengths.

Compared to its predecessor, the ASI178MM, the ASI678MM offers significantly lower readout noise, higher sensitivity, improved infrared response, and an amp glow-free design. This allows finest planetary details to be captured even under moderate seeing conditions. The improved High Gain Mode (from gain 182) drastically reduces noise and increases dynamic range.

Key Features

• Sony IMX678 sensor (1/1.8″) – monochrome, with excellent IR response
• Resolution 3840 x 2160 (8.3 MP) – for sharp planetary and lunar photos
• Pixel size 2.0 µm – for maximum resolution without Barlow
• No amp glow – interference-free for long exposures
• Frame rate up to 47.5 fps – for video and lucky imaging
• High Gain Mode from gain 182 – lower noise, greater dynamic range
• Light and compact (126 g) – fits any setup

Applications

✓ Monochrome planetary and lunar photography with filters ✓ Solar observation (with suitable solar filter and Baader filter system) ✓ Infrared imaging for better seeing performance ✓ Deep-sky imaging of compact objects like globular clusters and planetary nebulae ✓ EAA (Electronically Assisted Astronomy) ✓ Autoguiding via ST4 interface

With its very high sensitivity, fine pixels, and professional finish, the ASI678MM is an ideal choice for advanced astrophotographers working with mono and filter setups. The camera excels in detail, speed, and flexibility.

Specifications