09-12-2011, 10:05 PM
If you used a camera capable of clean high ISOs you could do away with f/2.8 glass, and canon 70-200mm f/2.8 non is is wonderful for a start. There are plenty of manual lenses around 200/2.8 and an odd bargain of 300/2.8 although you really have to hunt for it. Really, upgrade to 5D II or 1DIV (or D3s should you fancy) and you'll have more options.