question: What is the name of each camera lens and the number of photos taken by it? Order the result by the count of photos.
#1 return camera lens 
#2 return name of   #1 
#3 return photos  taken by  #1 
#4 return number of  #3 for each #1 
#5 return #2 ,  #4 
#6 return #5 sorted by #4