Original Photo  St John 
Studius 
Constantinople  
490 A.D. 

This one of the last structures with a Classical entablature and proportions. By this late date, Byzantine "Corinthian" capitals have become a hybrid of the Classical Composite order. The acanthus here are more projected and detailed than those at San Vitale. By 532 A.D., in Hagia Sophia, projecting acanthus on capitals are abandoned. The Studius church survived with a few Muslim additions into the 20th century, only to be gutted by a fire in 1920. 

Hagia Sophia
capital
 
Photo restored digitally  Unrestored
  
Studius entablature and end pilaster. It has been partially restored with cloning and pasting. Notice the classical hanging acanthus on the corner of the pilaster and the deep undercutting of the frieze. The interior entablature is a match.
  
Close-up of one of the capitals. Corinthian in overall shape, but the leaves under the volutes are only a hint  with acanthus carving  and  the leaf details are reduced to  small, drilled out areas on flats.  This photo was taken after the fire of 1920. The roof of the porch is now gone.