[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 ...

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 ...

I got hold of a beta sample of the lens and, while I won’t be able to give my final verdict on image quality until we can run ...

TSMC finds a corroded bomb at one of its upcoming chip factory sites in Taiwan, but says construction is still on schedule.

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

as evidenced by such pieces as the Canon EF-EOS mount adapter on Amazon, they're not exactly cheap, so you'll want to be as certain as you can before making that purchase. Clearly, moving a lens ...