1. Product Overview
The FocusFoto T2-EOSEF adapter allows you to mount T/T2 mount lenses and accessories onto Canon EOS EF/EF-S mount DSLR cameras. This adapter is constructed from durable aluminum alloy and is designed for manual operation.
Key Features:
- Constructed from high-quality aluminum alloy for durability.
- Enables focus to infinity.
- Features an M42 x 0.75 screw thread with a double ring design.
Image 1.1: Front view of the FocusFoto T2-EOSEF lens adapter, showing the T2/T mount threading.
2. Compatibility
Compatible Lenses and Accessories:
- All T/T2 mount devices, including microscopes, telescopes, T-mount lenses, and slide copiers.
Compatible Cameras:
Designed for Canon EOS EF and EF-S mount DSLR cameras. Note: This adapter is not compatible with Canon EF-M mount cameras or EOS R mount cameras.
Examples of compatible Canon EOS DSLR cameras include:
- EOS 1D Series: 1D, 1Ds Mark II, 1Ds Mark III
- EOS 5D Series: 5D, 5D Mark II, 5D Mark III, 5Ds, 5Ds R
- EOS 6D Series: 6D
- EOS 7D Series: 7D, 7D Mark II
- EOS xxD Series: 10D, 20D, 30D, 40D, 50D, 60D, 77D, 80D, 90D
- EOS Rebel Series (Digital Rebel): t1i, xt, xti, xs, xsi, 300D, 350D, 400D, 450D, 500D, 600D, 650D, 700D, 750D, 760D, 800D, 850D, 1000D, 1100D, 1200D, 1300D, 1500D, 200D, 200D Mark II, 100D
3. Installation
Follow these steps to properly install the T2-EOSEF lens adapter onto your Canon EOS DSLR camera:
- Prepare the Camera: Ensure your camera is powered off before beginning the installation process.
- Attach Adapter to Lens/Accessory: Align the red mark on the adapter with the corresponding mark on your T/T2 mount lens or accessory. Rotate the adapter counter-clockwise until it clicks securely into place.
- Attach Lens/Adapter Assembly to Camera: Align the red mark on the adapter with the red mark on your Canon EOS camera body. Rotate the lens/adapter assembly clockwise until it clicks securely into the camera's EF/EF-S mount.
Image 3.1: The T2-EOSEF adapter securely mounted onto a Canon EOS DSLR camera body.
Image 3.2: A T-mount lens attached to a Canon EOS camera via the T2-EOSEF adapter.
4. Removal
To remove the T2-EOSEF adapter from your camera or lens:
- From Camera Body: Press and hold the lens release button on your camera body. Rotate the lens/adapter assembly counter-clockwise until it detaches.
- From Lens/Accessory: Locate the release pin or mechanism on the adapter (if applicable, often a small button or lever). Depress or release it, then rotate the adapter clockwise to detach it from the T/T2 mount lens or accessory.
5. Operating Considerations and Warnings
- Manual Operation Only: When using this adapter, automatic diaphragm (aperture control), autofocus (AF), and other automatic functions will not operate correctly. All operations, including focusing and aperture adjustment, must be performed manually on the lens.
- Exposure Metering: Since the camera body cannot control the lens's aperture, the "Stop-down Mode" will need to be used for exposure metering. This means you will need to set the aperture manually on the lens before metering.
- Shooting Modes: You can typically shoot in Manual (M) mode or Aperture Priority (Av) mode on your camera.
Image 5.1: Example setup of a Canon EOS camera with the T2-EOSEF adapter and a long T-mount lens, demonstrating a typical manual photography configuration.
6. Specifications
| Attribute | Detail |
|---|---|
| Brand | FocusFoto |
| Model | T2-EOSEF |
| Material | Aluminum Alloy |
| Color | Black |
| Lens Mount | T/T2 Mount (M42 x 0.75 thread) |
| Camera Mount | Canon EOS EF/EF-S Mount |
| Dimensions (Packaging) | 13 x 11 x 2.01 cm (approx. 5.1 x 4.3 x 0.8 inches) |
| Product Weight | 54.4 g (approx. 1.92 oz) |
| Battery Required | No |
| UPC | 768671535961 |
7. Package Contents
The package includes the following item:
- 1x FocusFoto T2-EOSEF Lens Mount Adapter
Image 7.1: The FocusFoto T2-EOSEF lens adapter, sometimes accompanied by a small Allen key for adjustment (if applicable to specific T-mount lenses).
8. Troubleshooting
This section addresses common issues and questions related to the T2-EOSEF lens adapter.
Issue: Adapter does not fit camera or lens.
- Solution: Verify that your camera is a Canon EOS EF/EF-S mount DSLR and not an EF-M or EOS R mount camera. Ensure your lens or accessory has a T/T2 mount (M42 x 0.75 thread). Check for any obstructions or debris on the mounting surfaces.
Issue: Autofocus or automatic aperture does not work.
- Solution: This is expected behavior. The T2-EOSEF adapter does not support electronic communication between the lens and camera. All focusing and aperture adjustments must be done manually on the lens.
Issue: Exposure is incorrect.
- Solution: When using manual lenses, you must use "Stop-down Mode" for metering. Set your desired aperture on the lens first, then meter. Alternatively, use your camera in Manual (M) mode and adjust shutter speed and ISO to achieve correct exposure, or use Aperture Priority (Av) mode.
9. Maintenance
To ensure the longevity and proper function of your FocusFoto T2-EOSEF lens adapter, follow these maintenance guidelines:
- Cleaning: Use a clean, dry microfiber cloth to wipe the adapter. Avoid using harsh chemicals or abrasive materials. Do not use liquid cleaners directly on the adapter.
- Storage: Store the adapter in a dry, dust-free environment when not in use. Keep it away from extreme temperatures and humidity.
- Handling: Always handle the adapter by its body. Avoid touching the mounting surfaces to prevent fingerprints or scratches that could affect performance.