I'm moving from a crop sensor to a full-frame and I'm getting worried that my 70-200 f/2.8 isn't going to get me close enough to the action anymore. I do a lot of motor sport photography so have been enjoying a fast lens with 320mm equivalent reach.
The 400mm f/5.6 has caught my eye as an affordable option. I'm getting the Canon 5D3 so I'm thinking I just ramp up the ISO to maintain the shutter speeds I usually use. I've managed to live ok without IS as my subjects are moving faster than I shake the camera anyway.
Everybody seems to end up suggesting the 100-400mm IS but I won't be using that 100-200mm end, not sure about how much IS I'll end up using, and it's not as sharp as the prime.
I guess I want to know, does anyone use the 400mm prime for this type of thing or is it really designed for sitting on a tripod looking at birds?
Also, extenders... are these as foggy as some of the examples photos make them look or are they ok? Fast auto-focus is pretty important in this environment too so I don't want to compromise on that too much. Is there much difference between using an extender and just cropping a shot?
Thanks for any comments you can give.
The 400mm f/5.6 has caught my eye as an affordable option. I'm getting the Canon 5D3 so I'm thinking I just ramp up the ISO to maintain the shutter speeds I usually use. I've managed to live ok without IS as my subjects are moving faster than I shake the camera anyway.
Everybody seems to end up suggesting the 100-400mm IS but I won't be using that 100-200mm end, not sure about how much IS I'll end up using, and it's not as sharp as the prime.
I guess I want to know, does anyone use the 400mm prime for this type of thing or is it really designed for sitting on a tripod looking at birds?
Also, extenders... are these as foggy as some of the examples photos make them look or are they ok? Fast auto-focus is pretty important in this environment too so I don't want to compromise on that too much. Is there much difference between using an extender and just cropping a shot?
Thanks for any comments you can give.