I'm kind of intending to get a long Lenses about 400mm. I had narrow to these few Lenses.
1: Canon EF 100-400mm f/4.5-5.6L IS USM
2: Canon EF 400mm f/5.6L USM or
3: Sigma APO 80-400mm F4.5-5.6 EX OS
4: Canon EF 300mm f/4L IS USM
I dont actuall need the zoom but actuall would like the IS or OS(sigma)
Heard that the Sigma is a better choice.