ASI 678 MM Mono Camera

This uncooled CMOS camera offers a very high resolution and is suitable for lunar and planetary photography, as well as, with limitations, deep-sky photography.

The ZWO ASI 678MM It is the successor to the ASI 178MM. It is distinguished by a significantly lower noise , smaller pixels, higher sensitivity and an improved resolution . However, it has a slightly lower capture frequency (frame rate), which is still sufficient for planetary photography and can be increased using image cropping. (ROI) smaller. The maximum capacity of the Full Well is also somewhat smaller than that of its predecessor, the ASI 178MM, which, however, is of little importance for planetary photography. In contrast, the Amp Glow is already No is present in the ASI 678MM. Furthermore, near-infrared sensitivity has been significantly increased, allowing for even better photographing of planets in this spectrum, as the negative influences of visibility are less noticeable.

The ASI 678MM has a high gain mode which is activated from a gain value of 182, which significantly reduces reading noise and increases the dynamic range by one stop.
The uncooled camera can also be used to a limited extent for DeepSky photography, although the small chip size must be taken into account in this case. Therefore, it is best suited for compact planetary nebulae, double stars, or globular clusters. The 8.3-megapixel resolution is sufficient for DeepSky.

Specs:

• Sensor Type: CMOS Sensor (Sony IMX678)
• Chip size (mm): 7.7 x 4.3
• Megapixel: 8.3
• Pixel size: 2
• Photo resolution: 3840 x 2160
• Digital Sampling (Bit): 12
• Cooling: no
• Interfaces: USB 3.0, ST-4
• Connection (telescope side): 1.25" & T2
• Color camera: no
• Operating temperature: -5° to +50°
• Maximum exposure time (min): 33.3
• Minimum exposure time: 32µ
• Frames per second: 47.5 (At maximum resolution)
• Reading noise: 0.6
• Full Well Capacity: 11270
• Flange focal length (mm) 12.5
• Power supply 5 (via USB)
• Chip diagonal (mm) 6.4
• Filter wheel: no
• Weight (g) 126
• ASI 678 Series
• Diameter (mm) 62
• Length (mm) 36
• AllSky, Meteore no
• Self-guided yes
• Moon and planets yes
• Nebulae and galaxies yes