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		| Paper: | 
		Comments on Optical Photometry and the Generation of   Standard Stars | 
	 
	
		| Volume: | 
		503, Calibrating Large Surveys and Future Facilities | 
	 
	
		| Page: | 
		13 | 
	 
	
		| Authors: | 
		Landolt, A. U. | 
	 
	
	
		| Abstract: | 
		Comments will be made on situations encountered in the process of observational optical photometry and the establishing of standard star sequences. | 
	 
	
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