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ZWO ASI 461 MM Pro Mono – cooled 100-megapixel medium-format camera
ZWO ASI 461 MM Pro Mono – cooled 100-megapixel medium-format camera
The ASI461MM Pro is a cooled monochrome camera for very large fields and demanding deep-sky imaging.
Suitable applications
- High-resolution deep-sky astrophotography
- Large nebula and galaxy fields
- Research-oriented imaging and photometry
Features
- Sony IMX461 BSI CMOS with approx. 100 MP
- 44 × 33 mm medium-format sensor
- 16-bit ADC and approx. 91% quantum efficiency
- Two-stage cooling, anti-dew heater and no amp glow
Technical data
| Sensor type: | Sony IMX461 BSI CMOS, monochrome |
| Sensor format / size: | Medium format; approx. 44 × 33 mm |
| Resolution: | 11656 × 8750 pixels; approx. 100 MP |
| Pixel size: | 3.76 µm |
| ADC: | 16 bit |
| Quantum efficiency: | approx. 91% |
| Full-well capacity: | 50.3 ke−; up to 198 ke− in bin2 mode |
| Read noise: | 1.0–3.3 e− |
| Cooling: | up to 35 °C below ambient |
| Frame rate: | 3.77 fps |
| Thread / back focus: | M68; 22.5 mm |
| Weight: | 910 g |
| Anti-dew heater: | approx. 5 W |
| Sensor diagonal: | 54.8 mm |
| Sensor size: | 43.856 × 32.9 mm |
| Sensor format: | Type 3.4 / medium format |
| Shutter type: | Rolling shutter |
| Exposure range: | 32 µs to 2,000 s |
| Maximum frame rate: | 3.77 fps at full resolution |
| Back focus: | 17.5 mm or 22.5 mm |
| Power supply: | 12 V; 3–5 A recommended |
| Operating temperature: | −5 °C to +50 °C |
Practical note
The large sensor requires a suitable image circle, high-quality correctors and a stable setup.
Related products: Cooled astro cameras at Optikshop24 · Telescope accessories · Astrophotography filters
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