The ZWO ASI220MM Mini is a compact monochrome CMOS guide camera built around the highly sensitive Sony SC2210 sensor. Offering outstanding 92 % peak quantum efficiency and an ultra-low 0.6 e- read noise, it excels in acquiring faint guide stars even under challenging sky conditions.
This upgraded successor to the ASI290MM Mini features a larger 1/1.8" sensor and increased 4.0 µm pixel size, expanding the guiding field and improving overall SNR. The active area measures 7.68 mm × 4.32 mm, delivering a diagonal of 8.81 mm—ideal for use in guide scopes, off-axis guiders, or wide-field monitoring with CS lenses.
With its USB 2.0 interface and mini form factor, the ASI220MM Mini is a flexible and reliable tool for guiding or small-format monochrome imaging in both amateur and professional setups.
