ZWO EOS-T2 Version II Adapter for all ASI Cameras
Best adapter for astrophotographers using Canon EF lenses with ASI cameras.
This adapter facilitates a seamless connection between Canon EF lenses and ZWO ASI cameras, enhancing astrophotography setups. It serves as both an EOS-T2 adapter and includes a 5mm T2-extender for adjustable backfocus. Designed for compatibility with all ASI cameras, it exclusively supports Canon EF lenses. Achieve a 17.5mm backfocus without the extender or a 12.5mm backfocus with it, offering flexibility for different imaging needs. Additionally, it allows for the integration of a 2-inch IR-CUT filter, expanding its utility.
Owner Satisfaction
4.7
/ 5
Category Rank
607
/ 2593
#607 in Telescope Accessories
Adapter Side A
2
/ EOS T~
Who it's for
- Astrophotographers leveraging existing Canon glass for wide-field imaging
- Precision-focused imagers requiring exact 55mm back focus alignment
- Long-exposure photographers needing a rigid, flex-free optical train
Who should skip it
- Photographers relying on autofocus or electronic aperture adjustments
- Beginners intimidated by complex imaging train configurations
- Users pairing large-format sensors with smaller-aperture lenses
Performance breakdown
Build Quality
Machined aluminum construction ensures a rigid, light-tight connection for long exposures.
Backfocus Precision
The included extender provides essential flexibility for achieving perfect sensor spacing.
System Compatibility
Seamlessly bridges the gap between ZWO cameras and Canon EF optics.
Filter Integration
Internal threading allows for easy installation of 2-inch IR-CUT filters.
Setup Simplicity
Straightforward design makes switching between lens configurations quick and intuitive.
Lens Versatility
Limited exclusively to Canon EF glass, restricting options for other lens mounts.
Key Specs
Adapter Side A
EOS T~2
Adapter Side B
M42x0.75 T~thread (female)
Length
5 mm
Material
Aluminum
Connection Interface
T-Mount, M42 Thread
Accessory Type
Adapter
Know before you buy
No, this adapter is specifically designed for Canon EF lenses only. It is not compatible with RF or EF-S mount lenses.
The adapter provides a 17.5mm backfocus on its own. By attaching the included 5mm T2-extender, you can adjust the total backfocus to 12.5mm to suit your specific imaging requirements.
Yes, the adapter is designed to accommodate a 2-inch IR-CUT filter, which helps improve image clarity by blocking unwanted infrared light.
Yes, this adapter is fully compatible with all ZWO ASI camera models, making it a versatile choice for your astrophotography rig.
The Version II features a non-adjustable, fixed design that provides a more stable and secure connection between your Canon EF lens and ASI camera compared to previous iterations.
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