[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 ...

Canon's DSLR 24-70mm F2.8 topped this year's most-rented list but the number of EF-mount rentals as a whole fell. Image: Canon Camera and lens rental house LensRentals has published its annual top ...