ZWO ASI461MM Pro
ZWO
ZWO ASI461MM Pro is a large-format monochrome astronomy camera for LRGB and narrowband deep-sky imaging.
Best Current Offer
Specifications
Sensor
- Sensor model
- Sony IMX461 CMOS
- Color / mono
- Monochrome
- Sensor size
- Medium format (44 x 33 mm)
- Megapixels
- 102 MP
- Resolution
- 11656 x 8750 (102 MP)
- Sensor diagonal
- 55 mm
- Sensor area
- 1452 mm²
- Pixel size
- 3.76 µm
- ADC
- 16-bit
- Full well
- 50 ke
Cooling
- Cooling
- Two-stage TEC cooling
Mechanical
- Interface
- USB 3.0
- Buffer
- DDR3 memory buffer
Astrophotography Fit
A cooled monochrome camera best used where its sensor size and workflow match the telescope and calibration plan.
ZWO ASI461MM Pro is a flagship monochrome camera aimed at LRGB and narrowband deep-sky imaging.
As a mono camera, it becomes a system only after you add a filter wheel, LRGB filters, and narrowband filters. The payoff is stronger control over signal, star color, and emission-line contrast, but the setup asks for calibration discipline.
Match the camera to the telescope before buying: sensor size controls framing, pixel size controls sampling, and cooling only pays off when you also shoot darks and flats. If the scope cannot illuminate the sensor cleanly, a smaller camera can produce better data than a bigger one.
Best paired with
- Electronic filter wheel sized for the sensor and back-focus budget
- LRGB plus Ha, OIII, and SII filters matched to the sky conditions
- Guided refractors or corrected astrographs with a clean calibration-frame library
Not recommended for
- First-time imagers who want a simple one-shot color workflow
- Rigs without budget or back focus for a filter wheel and filters
- Casual sessions where darks, flats, and repeatable gain settings are unlikely
Where To Buy
Some links on this page are affiliate links. Prices and availability are pulled automatically from each retailer and updated daily.
| Retailer | Price | Availability | View Offer |
|---|---|---|---|
| ZWO USA ZWO USA | $14,800.00 | In stock Updated 5/15/2026 | View Offer - $14,800.00 |
Price History
Chronological retailer pricing with out-of-stock points shown at reduced opacity.