Enjoy your new toy, it's a great lens- did you know it was going to be there ?
Why?And NO UV filter !!
Why pay all that money for fluorite and ED glass and then stick something on the front that works against those features, I guess.Why?
Is there a reason why not? I have 100-400 and i don't put a uv filter if it''s a perfect day but if it's a bit misty or close to possible sea spray i do.