Caporegime
		
		- Joined
- 9 Nov 2009
- Posts
- 25,775
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- Planet Earth
Currently on an older Sony system with the screw driven Sigma 135-400MM lens. I intend to move over to a Pentax or Nikon system at a later date,so I was wondering what people think of the 120-400MM or the 150-500MM?? Will be using it for general birding but also the occasional airshow - are the focus motors up to the task??
Any alternatives under the £800 mark??
	
		
			
		
		
	
				
			Any alternatives under the £800 mark??
			
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