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Canon EF 100-300mm f/4.5-5.6 USM

ef100_300f45_56_1_
Review Date: Jun 9, 2005 Recommend? no | Price paid: Not Indicated | Rating: 6 

 
Pros: price, light weight, ring type zoom.
Cons:
too light weight, slow focusing for a usm lens, not very sharp.

I need a 300mm lens. What I really want is a 28-300mmISUSML lens. I do most of my photography from the confines of a fairly tight airplane cockpit. I thought that a compact lens such as this 100-300mm would fit the bill. So I bought it.

It's going back to the dealer tomorrow. The lens is so light that it's near impossible to hold steady while on a bumpy taxiway or in light turbulance in the air. I really need a heavier lens to help dampen out the bumps. I also can't believe how dependent I have become on the stabliztion feature of my 28-135isusm, which of course the 100-300 doesn't have.

One of the reasons that I switched from Nikon to Canon when I went digital was because of the vast array of super fast focusing USM lenses. In my view the 100-300 lens is very slow in focusing. And it has difficulty finding and maintaining focus through the thick plexiglass windows of my airplane. My 28-135isusm is razor sharp and cat quick in focus. You may check out the following website, where most of the photos were taken with my 28-135mm lens

http://www.airliners.net/search/photo.search?nr_of_rows=89&sort_order=views&first_this_page=0&page_limit=15&thumbnails=&&photographersearch=Brett%20B.%20Despain

Bottom line: I'm saving my money for the 28-300mmISUSML lens that I really want!