Hello AP Regs,

Looking for anybody that has used the Canon 300mm L F4 Prime for sport shooting ,any positive or negative feedback with it. It will be used at high shutter settings and pushed with higher ISO in lower afternoon light.

I'm looking at using this lens for rugby union and league. I feel it might suit my intended use better, rather than the 400mm F5.6 due to faster glass and the lower afternoon light it will be mostly used in. Secondary for birding and surf/beach work. Also being a 77mm lens, the filters will interchange from my 70-200mm L (But if you feel the 400 is the goods, please enlighten me)

It will be used on my 50D so I would get 480mm equalivant on my APS-C (400mm to 640mm). Added to that, I have a 1.4TC so that would blow the IQ on the 400mm out to much I feel, but still be usefull on the 300mm L F4 for other daylight use.

Please link any pictures you've taken with this lens if available.

Thanks in advance.