[zhenya]

Originally Posted by Poseidon

Silent and FASTER focus has been my experience. I am so used to my 24-70 and 70-200 2.8 lenses focusing almost instantly that even my 24-105 seems to focus slow. (It is not, but compared to a 2.8 lens it is.)

Gene, I have seen bird shooters wrap their white barrels with CAMO tape before, talk about funny looking!

The way I figure it, if Canon says that a white barrel keeps the lens cooler in the sun, who am I to argue?

I wouldn't argue with that point either, Mike. Makes lot of sense to me.

You know, I had no problem with focusing speed of that tamron lens, it is quite fast and accurate. Noise is totally another matter however. You learn to live with it after a while, though, and if you are not professional photographer spending money on lenses is hard to justify if you not wealthy by default... And if you consider that you are involved in a reefkeeping hobby, and most people think you are crazy already, L lenses are hard to come by.

[zhenya]

Charlie,

Here's that full tank shot I promised. Not the best results but it was one of the first shots I took with this lens.