Sadly Canon stopped supporting their older lenses and I decided to switch brands. The Sony is overall lighter and fits my hands better. The second Choice is a more affordable option. $1,998.00https://www.bhphotovideo.com/c/product/1532686-REG/sony_fe_200_600mm_f_5_6_6_3_g.html/reviewsThis is a dream lens of mine to take action photography images. It would be amazing to one day own such a lens. $12,998.00https://www.bhphotovideo.com/c/product/1485539-REG/sony_sel600f40gm_fe_600mm_f_4_gm.html