ZWO ASI174MM Mini monochrome camera (ZWO, SKU: ASI174MM Mini). The ZWO ASI174MM Mini is a compact monochrome camera designed for guiding and planetary imaging. Its 11.3 × 7.1 mm sensor makes guide stars easier to find, particularly when using an off-axis guider, or OAG, with RC and SCT telescopes. Compared with the ASI120MM Mini, it provides approximately 4 times the recorded field area at the same focal length, provided that the guider optics cover the entire sensor. The camera uses a USB 2.0 interface with a USB-C connector and has an ST-4 port for connection to a mount autoguider input.
• monochrome CMOS sensor with 5.86 × 5.86 µm pixels
• global electronic shutter exposing the entire frame simultaneously
• low read noise and adjustable signal gain
• selectable smaller region of interest, or ROI
• protective AR window that also transmits infrared, allowing use with a suitable IR-pass filter
• lightweight red aluminium housing without active cooling
• camera: ZWO ASI174MM Mini
• dust cap: 1.25"
• cable: USB 2.0, 0.5 m long
• cable: USB 2.0, 2 m long
• cable: ST-4
• adapter: M28.5–CS
• extension tube: 1.25"
• user manual
• sensor type: Sony IMX174 monochrome CMOS
• sensor format: 1/1.2", 11.3 × 7.1 mm
• sensor diagonal: 13.2 mm
• resolution: 1936 × 1216 px, approximately 2.3 MP
• pixel size: 5.86 × 5.86 µm
• full-well capacity: 32 ke−
• read noise: 3.5–6 e−, depending on gain setting
• peak quantum efficiency: approximately 77%
• analogue-to-digital converter: 12-bit, with a 10-bit mode also available
• maximum full-resolution frame rate: 18.4 fps
• exposure range: 32 µs–2000 s
• region of interest selection: supported
• shutter: electronic, global
• back focus: 8.5 mm
• sensor protective window: AR glass
• data interface: USB 2.0, USB-C connector
• guiding port: ST-4
• connection: 1.25" barrel and M28.5 × 0.6 thread
• supported operating systems: Windows, macOS and Linux
• active cooling: none
• operating temperature: −5°C to 45°C
• housing dimensions: diameter 36 mm, length 61 mm
• weight: 60 g
• warranty stated by the retailer: 24 months
The ASI174MM Mini combines a large guiding sensor with a compact housing and ports for connection to a computer and mount.
