Canon lens adapters

Buy Canon lens adapters (e.g. EF-EOS R & Co.) online

Would you like to use your trusted Canon EF or EF-S lenses on a mirrorless EOS R camera? With an original Canon EF-EOS R adapter, the switch to the new system is seamless – with no loss of quality, full functionality and maximum flexibility.

At Foto Siegl, you can find all three Canon adapter variants – from the standard model to the drop-in filter adapter – including expert advice and the right accessories for your setup.

Function & compatibility of the EF-EOS R adapters at a glance

With Canon’s EF-EOS R adapters, you can connect your trusted EF or EF-S lenses to modern mirrorless Canon EOS R cameras – with a perfect fit, reliably and without any loss of quality.

Compatible with:

• EF lenses (full-frame)
• EF-S lenses (APS-C)
• All cameras in the EOS R series (e.g. R, RP, R6, R5, R7, R10, R8, R3 etc.)

The following are not compatible:

• RF lenses (cannot be adapted)
• EF-EOS R adapters on Canon SLR cameras
• Certain third-party lenses (electronic limitations may apply)

Note: A separate EF-EOS M adapter is required for EOS M cameras. This is not compatible with EOS R systems.

Who would benefit from a Canon lens adapter?

An EF-EOS R adapter is worth it for anyone who wants to continue using EF or EF-S lenses on EOS R cameras – without switching to RF straight away.

Particularly useful for:

• Beginners who want to keep their existing kit
• Amateur photographers who switch flexibly between DSLR and DSLM
• Professionals who wish to continue using specialised lenses (e.g. tilt-shift, telephoto)
• Videographers who want to use the drop-in filter adapter

This is how you can switch systems without compromising on quality – and without expensive new purchases.

Comparing adapter models – Standard, Adjustment Ring & Drop-In Filter

Canon offers three versions of the EF-EOS R adapter, which differ significantly in terms of functionality – suitable for different applications:

All models support electronic communication between the camera and lens – including autofocus, image stabilisation and aperture control (with compatible lenses).

Technical notes on autofocus, exposure & handling

The EF-EOS R adapters are designed to fully maintain electronic communication between the lens and the camera. However, there are technical considerations you should bear in mind when using them:

1. Autofocus: Generally works quickly and reliably – depending on the lens used. Some older EF lenses focus more slowly or require more light.
   
   
2. Exposure and aperture control: All electronic aperture functions are retained. Exposure metering is carried out as usual via the camera.
   
   
3. Handling and stability: The adapter is robust and can safely support even heavy lenses. A tripod adapter is recommended for long telephoto lenses.
   
   
4. Firmware and lens updates: For older lenses, a firmware update may improve compatibility.

In short: With the original Canon adapters, handling remains familiar – only the range of connection options is expanded.

Accessories & extensions for adapter use

Canon EF-EOS R adapters can be ideally combined with additional accessories – for greater flexibility, precision and creative possibilities:

• Extension rings: For macro photography with EF lenses – also usable on the EOS R
• Teleconverters: For additional focal length with compatible telephoto lenses
• Tripods and quick-release plates: For stability with long focal lengths or heavy setups
• Cleaning accessories: For clean contacts and a reliable connection
• Drop-in filter adapters: Only compatible with genuine Canon drop-in filters (e.g. ND, polarising, clear) – screw-in filters are not compatible

You can purchase these accessories directly from Foto Siegl – perfectly tailored to your Canon system.

Discover more genuine Canon accessories

Buy the right Canon adapter online at Foto Siegl

Whether standard models, adapters with control rings or drop-in filters: at Foto Siegl you’ll find all Canon EF-EOS R adapters in genuine quality – ideal for a seamless transition to the mirrorless EOS R system.

Benefit from our specialist expertise and the following advantages in our shop:

• Accessories for adapters, lenses and system cameras
• Personalised expert advice from our photography experts
• Europe-wide shipping and various financing options
• Regular Canon promotions and deals

If you have any questions about compatibility or finding the right model, our contact form is here to help – fast, expert and personalised.

Frequently asked questions (FAQs):

1. Which Canon lenses are compatible with the EF-EOS R adapter?
   The adapter is suitable for all Canon EF and EF-S lenses. These can be used on mirrorless EOS R cameras – with full electronic functionality.
   
   
2. Can I use RF lenses on a Canon DSLR with an adapter?
   No, Canon does not offer an adapter for RF lenses on EF cameras. The EF-EOS R adapters only work from EF/EF-S to EOS R.
   
   
3. Are Canon adapters also compatible with lenses from other manufacturers?
   Many third-party lenses with an EF mount work, but not always with full autofocus or aperture control. Compatibility is not guaranteed.
   
   
4. When is the Canon Drop-In Filter Adapter worth it compared to the standard model?
   The Drop-In Adapter is particularly suitable for video, long exposures or lenses without a filter thread. It allows the use of special Canon drop-in filters (e.g. ND or polarising filters) directly in the adapter.