yes
select brand from camera_lens where id = 2
what is color of mountain id no. 20 ?
select distinct ( color ) from photos where mountain_id = 20
what is focus  length of id 3?
select focal_length_mm from camera_lens where id = 3
what is the name of the camera lens in the mountains id 2?
select t2.name from photos as t1 join camera_lens as t2 on t1.camera_lens_id = t2.id where t1.mountain_id = 2