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Charles Wales Wyckoff ( 1916 - May 9 , 1998 ) was an American photographic innovator , a photochemist specializing in high speed photography , also noted today for his innovations in the field of high dynamic range imaging .
 Wyckoff
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Wyckoff