ZWO ASI294MM Mono

The ZWO ASI294MM Mono is an uncooled monochrome astro camera with the Sony IMX492 sensor - ideal for lunar, planetary and deep-sky photography. The sensitive back-illuminated sensor and flexible resolution capabilities make this an excellent all-rounder for astrophotographers seeking maximum sharpness.

The ASI294MM Mono uses 4.63 µm pixels, with the ability to utilize a resolution of 2.3 µm pixels via “unlocked mode.” This makes this camera suitable not only for standard shooting, but also for high-res lucky imaging and solar photos.

Key features

• Sony IMX492 monochrome sensor (11.7 MP) - 4.63 µm pixels (or 2.3 µm in unlocked mode)
• QE >75% - highly light-sensitive for short exposure times
• No active cooling - less weight, ready to use
• HCG Mode - Readout noise drops below 2 e- at higher gain
• Full Well Capacity up to 66,000 e- - better signal-to-noise ratio
• USB 3.0 + ST-4 interface - fast, compatible and flexible

Applications

✓ Moon & planets - extremely short exposures freeze seeing effects
✓ Deep-sky objects - stacking of short exposures without cooling
✓ Sun photography (with proper filters) - thanks to high resolution and unlock mode
✓ Live video & guiding - support for autoguiding

Specifications

Additional info

✓ Comes with AR clear glass filter (pass through to IR) - IR cut filter optional
✓ Compact and lightweight - perfect for mobile setups or solar shooting
✓ Compatible with Windows, Mac and Linux

Note

For infrared-sensitive objects or use with achromats, an IR-cut filter is recommended. For optimal narrowband performance, active cooling (e.g., with ASI294MM Pro) is recommended.