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| Lenses Discussion of Lenses | 
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			Techno. Info. required please from any of the rich and famous regarding the above lens. 
		
		
		
		
		
		
		
		
	
	info required is as follows- a) VR switch - is this a simple switch or is it rotating collar as per 300/2.8VR. b) Focussing mode switch - is this switch a 2 or 3 position version, ie M/A, M, or M/A, M and A. c) Focusing limiter switch - what are its settings. Thanks in anticipation Subzero.  | 
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			#2  
			
			
			
			
			
		 
		
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			Well, I used to be rich then I got a 200-400 f4 VR. 
		
		
		
		
		
		
			There is a VR switch for ON/OFF and another for NORMAL/ACTIVE these are simple switches not a collar like the 300 f2.8 VR. Focus mode is again a simple switch above the VR selection and falls across two individual switches for M/A - M and a limiter for FULL/infinite-6m. 200-400 f4 VR is a mighty fine lens approx 95% sharpness of 300 f2.8 which is excellent for a zoom. my only grape is the size but when discussing this to a chap who also owned one at an airshow he said 'if you want a smaller 400mm lens fine if you want blurry pictures'. This lens is SHARP! 
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	http://www.aviation-photography.co.uk/  | 
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			#3  
			
			
			
			
			
		 
		
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			Many thanks Stephen, 
		
		
		
		
		
		
		
		
	
	Exactly what I wanted to know, optically it seems very good judging by the many outstanding images I have seen taken with it. Many thanks also for the other useful comments. regards Subzero  | 
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