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Explore ZEUS 455M Pro
A 61 megapixel full-frame mono sensor gives the ZEUS 455M PRO very high native resolution and small 3.76 µm pixels for detailed deep-sky imaging. Built-in two-stage cooling and a 16-bit ADC help preserve faint gradients and reduce thermal noise during long exposures, making it well suited to narrowband and high-resolution broadband work.
Sensor: IMX455 mono
Format: 36 x 24 mm (Full-Frame)
Max Resolution: 9576 x 6388 (61 MP)
Pixel Size: 3.76 µm
The camera uses the IMX455 sensor with 61 megapixels at 9576 x 6388 resolution and 3.76 µm pixels. That combination increases sampling detail across a 36 x 24 mm full-frame area, letting you resolve fine structure in nebulae and crowded star fields when paired with suitably large optics.
A high-quality two-stage TEC cooler can pull the sensor temperature down by about 35 °C below ambient, reducing dark current during long exposures. Cooler power is supplied at up to 12 V, 3 A, so plan for an adequate power source for sustained deep-sky sessions.
Native 16-bit ADC gives 65,536 tonal levels for smooth grayscale gradients. Dual sampling modes include a Low-Noise (HCG) option that lowers readout noise from around 4.2 e⁻ down toward 1.27–1.5 e⁻, improving dynamic range and faint detail extraction compared with Normal mode.
A four-point rear sensor tilt plate provides fine tilt correction at the sensor corners and includes a high-density sponge shading pad to block side light. The box also lists multiple M54 and M42 extenders/adapters, covers, cables, an air blower, hex wrench and a padded camera bag for field setup and transport.
It uses a Sony IMX455 mono sensor, listed as full-frame 36 x 24 mm with 61 megapixels (9576 x 6388) and 3.76 µm pixels.
The camera has a high-quality two-stage TEC cooling system with a Delta T of about 35 °C below ambient. Cooler power is specified as 12 V - 3 A max.
The ZEUS 455M PRO offers dual sampling modes: Normal for higher frame rates and Low-Noise (HCG) mode. Readout noise is specified in the range of 4.2 to about 1.27 e⁻ depending on mode.
The camera has a native 16-bit ADC, providing 65,536 tonal levels for grayscale imaging.
Included items list M54M-M54F extenders (17.5 mm and 20 mm), an M54M-M42F adapter, T-mount and 1.25" cover, multiple USB cables (Type-C to Type-A 2 m USB 3.2, Type-C to Type-C 0.5 m USB 2.0, Type-C to Type-B 0.5 m USB 2.0), plus a metal cover, air blower, hex wrench and camera bag.
Exposure range is 32 microseconds to 2000 seconds. Over a USB 3.0 connection the full 9576 x 6388 resolution delivers about 6.5 FPS in Raw8 and about 3.2 FPS in Raw16.
| ADC | 16 bit |
| Adapter | M54x0.75, 2″, 1.25″ |
| Back Focal Length | 17.5 mm, 12.5 mm (without tilt plate) |
| Chip Size | 36 mm x 24 mm |
| Cooler Power Consumption | 12 V - 3 A Max |
| Cooling System | High-quality 2-stage TEC cooling |
| Data Port | Type-C USB 3.0/USB 2.0 |
| Delta T | 35 ℃ ± 2 ℃ (below ambient) |
| Diagonal | 43.3 mm |
| Diameter | 90 mm |
| Exposure Range | 32 µs-2000 s |
| Full Well | 71.6 k e⁻ |
| Max Resolution | 9576x6388 |
| Pixel Size | 3.76 µm |
| Protective Window | D55x2 mm AR Plus Coated |
| QE Peak | ≈91% |
| Readout Noise | 4.2-1.27 e⁻ |
| Resolution and FPS | Performance via USB 3.0 Connection Resolution Raw8 Raw16 9576x6388 6.5 FPS 3.2 FPS |
| Sensor | Sony IMX455 CMOS (mono) |
| Shutter | Rolling shutter |
| Total Pixels | 61 Mega Pixels |
| Weight | 650 g |
| Working Temp & Humidity | -10 ℃-60 ℃ / 0%-80% |