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I have a Canon 5D MARK III body and have been shooting air shows using my 70-200 f2.8L IS II with a Canon 2 x III extender.
This works pretty well but I could be doing with some extra reach so I am looking at a new lens or lens/EX combination without selling body parts to finance it.
I have come down to the following options:
Canon 400mm f5.6 L with a 1.4 TC - this will get me just under 600mm but at f8.
This worries me in low light situations and I am unsure how the 5D3's AF will suffer - it might not be good for airshows.
Canon EF 300mm f4 L IS USM with either a 1.4 or 2 x TC - this gives me IS and with the 1.4 TC a 420mm lens with f/5.6 and IS. I could also use the lens with a 2X converter to get a 600mm lens with f/8 and IS.
Once again though I am concerned about image quality and AF performance, particularly as I will be focusing fast jets.
Does anyone have a similar combination and can help with the performance of this body/lens and the image quality I can expect?
Sharpness is king for me, I was looking at the new Tamron SP 150-600mm f/5-6.3 Di VC USD but I have ruled it out due to the poor image quality above 500mm.
This works pretty well but I could be doing with some extra reach so I am looking at a new lens or lens/EX combination without selling body parts to finance it.
I have come down to the following options:
Canon 400mm f5.6 L with a 1.4 TC - this will get me just under 600mm but at f8.
This worries me in low light situations and I am unsure how the 5D3's AF will suffer - it might not be good for airshows.
Canon EF 300mm f4 L IS USM with either a 1.4 or 2 x TC - this gives me IS and with the 1.4 TC a 420mm lens with f/5.6 and IS. I could also use the lens with a 2X converter to get a 600mm lens with f/8 and IS.
Once again though I am concerned about image quality and AF performance, particularly as I will be focusing fast jets.
Does anyone have a similar combination and can help with the performance of this body/lens and the image quality I can expect?
Sharpness is king for me, I was looking at the new Tamron SP 150-600mm f/5-6.3 Di VC USD but I have ruled it out due to the poor image quality above 500mm.