I discuss the new EOS R50 V camera and how using the RF.71 adapter with it can eliminate the 1.6 crop factor, but also results in a reduction in the effective aperture of the lens, even for a fast lens like the Sigma 20mm 1.4. Check the best deals on R50V - https://geni.us/canonr50v #EOS_R50_V #RF_71_adapter #crop_sensor #lens_magnification #aperture_reduction #sigma_20mm_1.4