Whether you upgrade in the future or not, it is not cost-effective for you to use 17-40 F4L and 24-70F4L. These two lenses are both entry-level L lenses, which can't be said to be bad, but they are better than the dog's head. But if it is used for wedding photography, it is not enough. At least 24-70 F2.8, 70-200 F2.8 is enough. 17-40 is barely enough. Let's not talk about it for the time being. But it is better to change it to16-35f2.8l..

The popular trend of wedding photography is: large aperture, blurring and feminization.