Thanks, I got it. But I want to ask about the quality of photo. I also little bit prefer f4 than f4-5.6, however the other got zoom in 300mm. I think I am ok with 200mm
I have one 6D myself, now I got 2 lens: 24-105mm f4L for multiple purposes, and 85mm f1.8 for take portrait photo. Now I am looking for a tele lens. I am confuse between 70-200mm f4L is usm and 70-300mm f4-5.6L is usm. Can someone give me an advise? Thank you guys!