    | 
			
		
		
		Hi, I shot a lot of film over the summer and I'm processing it now.  Most of the negatives seem both underexposed and underdeveloped.  But some that I shot just a week or so ago, using the exact same curves, are perfect. What's going on?  Does keeping the film in a box for a few months before processing change its response to the chemistry?  I've never noticed this to be the case in the past.  I'm using Kodak TXP.   |  
		| 
			
			 | 
											
    		
	    		
	    		
			
		 |  
		  | 
    	   | 
	       |