Canon EF 70-200mm f/2.8L IS USM Telephoto Zoom Lens for Canon SLR Cameras

I am 48 yrs old.. used to 70-200mm F/4 L USM and happy with the lens untill I try the F/2.8 IS. this lens is for those who is looking for the best and crisp detail/sharpness.
the big different is in small detail such as human hair, bird's feather etc.
The Image stabiliser is really help.. I can managed to get reasonable sharp pictures at 200mm at average room lightning condition which will be blurred without IS [ Aged problem...] But The price and weight is on the high side.
IF you looking for crisp detail/sharpness and nice/smooth Bokeh( blurr BG ). this lens is just right for you. But if you are looking for cheaper, lighter and don't ask for the best and crisp detail/sharpness the 70-200 F/4 will be your choice. I am keeping both..

I am a photography enthusiast/amateur. I do not have any professional experience. But, I have about a 1 1/2 years use of this lens. This is a fantastic lens. I do use it a lot less than my 24-70 USM 2.8L. However, I like this one a lot more. I use this lens when doing sports photography. The IS feature is phenomenal. The "L" glass produces sharp clear pictures. The only downside is the price. $1550-$2000 is a lot to shell out, but it is well worth it.