ZWO ASI2600MM Duo
ZWO
ZWO ASI2600MM Duo is a large-format monochrome astronomy camera for LRGB and narrowband deep-sky imaging.
Best Current Offer
Specifications
Sensor
- Sensor model
- Sony IMX571 CMOS
- Color / mono
- Monochrome
- Sensor size
- APS-C (23.5 x 15.7 mm, 28.3 mm diagonal)
- Megapixels
- 26 MP
- Resolution
- 6248 x 4176 (26 MP)
- Sensor diagonal
- 28.3 mm
- Sensor area
- 368.9 mm²
- Pixel size
- 3.76 µm
- ADC
- 16-bit
- Full well
- 73 ke
Cooling
- Cooling
- Two-stage TEC cooling
Mechanical
- Interface
- USB 3.0
- Buffer
- 512 MB DDR3
- Back focus
- 17.5 mm
Specifications
- Peak QE
- 91%
Astrophotography Fit
A cooled monochrome camera best used where its sensor size and workflow match the telescope and calibration plan.
ZWO ASI2600MM Duo is a premium 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.
The Duo layout simplifies guiding by putting a guide sensor in the camera body, reducing cables and back-focus stack length; it still needs enough guide stars and a compatible optical train.
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
Retailer Rating
Ratings aggregated from public retailer data.
Retailer breakdown
| Retailer | Rating | Reviews | Source |
|---|---|---|---|
| High Point Scientific | 4.8 | 4 | Product page |
| Mile High Astronomy | 5.0 | 1 | Product page |
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 |
|---|---|---|---|
| Astronomics Astronomics | $2,299.00 | In stock Updated 11/4/2026 | View Offer - $2,299.00 |
| Cloud Break Optics Cloud Break Optics | $2,299.00 | In stock Updated 11/3/2026 | View Offer - $2,299.00 |
| High Point Scientific High Point Scientific | $2,299.00 | In stock Updated 11/4/2026 | View Offer - $2,299.00 |
| Mile High Astronomy Mile High Astronomy | $2,299.00 | In stock Updated 11/4/2026 | View Offer - $2,299.00 |
| Telescopes.net Telescopes.net | $2,299.00 | In stock Updated 11/4/2026 | View Offer - $2,299.00 |
| ZWO USA ZWO USA | $2,299.00 | In stock Updated 11/4/2026 | View Offer - $2,299.00 |
Price History
Chronological retailer pricing with out-of-stock points shown at reduced opacity.