I personally own the EF 16-35mm f/2.8L II, and use it on my newer EOS R ... but it's truly tiny and is also stabilized – ...

[Dan K] had just such a lens from Sigma, but wanted to get it working fully with a camera using the Canon EF lens fitting. Hacking ensued. The lens in question was a Sigma 15-30mm f/3.5-4.5 EX DG ...

Top picks for 2025 - Discover the best lens choices for your EOS R camera for superior image quality and the latest ...

The EOS R1 features a new high-speed 24.2MP full-frame BSI stacked CMOS sensor that reduces rolling shutter at the expense of ...

The fixed lens on this camera meant no zoom was possible. [Bastiaan] decided to address this shortcoming by building a Canon EF Lens Mount. The resulting build looks hilarious, but actually takes ...