SELECT brand ,  name FROM camera_lens ORDER BY max_aperture DESC
Find the brand and name for each camera lens, and sort in descending order of maximum aperture.
[Schema (values) (types)]: | mountain_photos |  mountain : id (text) , name (number) , height (text) , prominence (number) , range (number) , country (text) | camera_lens : id (text) , brand (number) , name (text) , focal_length_mm (number) , max_aperture (number) | photos : id (text) , camera_lens_id (number) , mountain_id (text) , color (number) , name (number);