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Canon EF 100-400mm f/4.5-5.6L IS USM

ef100_400l_1_
Review Date: Apr 3, 2006 Recommend? yes | Price paid: $1,350.00 | Rating: 9 

 
Pros: Excellent clarity of photos, even at 400mm
Cons:
n/a

Ok, I'm just a novice, but here's a couple of my observations about this lense. Colors look great, and the auto focus seems to snap in quickly, and on the money every time so far. Here is my big revelation about the dust thing. Because I have read so much about this being a problem, I was very, very meticulus when I first received the lense. I had ordered it through that big on-line buying store, and I examined the camera thoroughly when I received it, to make sure I wasn't getting a reconditioned lense, or one that had been previously returned. Though one corner of the canon box arrived a little crushed, I slowly and nervously unpacked the lense. It sure looked like a new lense, with no visible smudges, hairs, or fingerprints, etc. I proceeded in removing the lenses from the carrying case, taking it out of the inside plastic bag, and then slid the hood off the lense (which they had conveniently turned backwards to protect the lense housing). I then was shocked to notice hundreds of tiny black specs statically stuck to the metal. I swiped my finger across the metal, and my finger looked like it had charcoal on it (from the solid black fuzz). I wiped off as much as possible before trying out the lense. It was obvious the fuzz had originated from the felt on the inside of the hood. I had to wonder if this could be causing the dust problem. The fuzz, though not immediately visable when I first looked at the lense, was noticed after examining it closer with my overly critical inspection. I would bet that if these "statically charged" fuzz specs got inside the lense via the push/pull design, they would be almost impossible to completely remove, hence the constant contaminating problem of the sensor. Anybody else find the same problem?