Pros: Pros: No internal dust so far Very pleasing shots with nice Bokah Sharp even at F/2.8 zoomed between 20mm and 48mm Auto focus perfect! Silent quick lock even in dim conditions Image Stabilization let's you get those shots you couldn't get otherwise.

Cons: Cons: Cheap plastic construction No dust yet but I am concerned No included lens hood? Give me a break Canon! Really poor zoom feel grabs at each end and feels cheap Front of lens extends inward and outward when zooming in and out Really soft shots when zoomed to both ends of the zoom especially at 17 and 55

Overall Review: I bought this lens to take low light portraits during weddings. My initial impression is that this lens will be perfect. I even managed to pull off a 2 second exposure that was pretty sharp hand held which I would never be able to do otherwise. I will use it at the extreme in 55mm for nice bokah and a softer shot then keep it between 20mm to 48mm for the sharper shots. What a disappointment to pay over $1,000 for a lens and have such a poor feeling zoom. It grabs at each end and just plain feels cheap. Makes my Canon 17-40 F4 zoom feel like it's perfect as it is silky smooth. But, the 17-55 F/2.8 IS does something I could not do with the 17-40. I was at a bar the other night shooting a benefit auction using just available bar light and already at 1600 ISO and the Canon 17-40 wide open just could not get the shot. With the 17-55 F/2.8 IS not only do you have the faster aperture F/2.8 but I can get shot after hand held shot at a half a second something I could not come close to with

Pros: Super Bokeh Great lens hood Too many clients!! Super low light event lens Best portrait lens for women and girls ever made Shoot outside at night with no tripod at 3200 ISO! Amazing looking photos that say professional all over them. Along with my Canon 135 F2 lens the finest portrait lens in the world! Sharp wide open in the center with wonder halo effect around outside Sharp edge to edge by F2.0

Cons: Price Heavy! 1,025 Grams Exposed rear element Removal procedure (1 manual focus, 2 focus to infinity, 3 camera Off) Battery Hog!! I only get 300 - 360 shots or so with Canon 40D Install procedure (carefully line up without seeing red dot and protect rear element) Some CA (Chromatic Aberration) wide open totally gone when stopped down to 1.8 not an issue with most portrait photos

Overall Review: I now have too many clients because of this lens and no longer have time to update or make changes to my review so I took all of it off except this intro and the pros and cons. Also I now have to supply my clients with a photographers release as most places say a pro must have shot these you must have a photographers release. These are great problems I never had before purchasing this lens. Lens I currently own: Canon EF-S 17-55 F/2.8 IS Ultra sharp, great colors, great low light, poor zoom action Canon EF-S 18-55mm f/3.5-5.6 Rebel XTi Kit lens Muddy, slow, pile of junk Canon EF 17-40mm f/4 L Fantastic colors, pretty sharp, buttery smooth zoom, light weight Canon EF 24-70mm f/2.8 L Fantastic colors and contrast, sharp, buttery smooth zoom, heavy! Canon EF 50mm f/1.8 II Good budget portrait lens, light weight, disposable Canon EF 85mm F/1.2 L II The best portrait lens I own, , buttery smooth Bokeh, heavy and expensive it shares sharpness with 135mm Canon EF 135mm F/2.0 L A gre

Pros: Rocket ship Fast! High Image Capacity Great Price Absolute reliability so far, no lost photos or formatting problems, NONE!

Cons: NONE!!

Overall Review: The card came preformatted but I found by formatting it with the camera you could get a few extra shots. Card Use in Windows XP and Mac OS X What a difference when I downloaded the photos I had taken, mama meia! This thing rocks downloading to both my Dell Windows XP and my 24" iMac!!! It reacts more like downloading from a hard drive. Cut's your download time way down, instead of going to get a drink or take a break you are ready to view your photos in seconds instead of minutes!! Card use in a Canon Digital Rebel XTi I have never used any other card beside the Transcend 266X 8 GB in this new Rebel XTi so I don't know how slow or fast it is with another card. But with this card it ROCKS!! My Rebel XTi would in sports mode consistently shoot 30 rapid frames in 10 seconds flat at Large High Quality JPEG before slowing down to store the buffer. Please note that the higher the ISO setting the lower the number of photos you can store on the camera. Image Storage Cap

Pros: Favorites menu! Auto ISO in all modes Fits my hand like a glove! 1/8000th shutter speed and 3200 ISO at last! Flash using Canon Speedlite 430EX is right on the money! Super fast in all aspects: turn on, operation, auto focus, shooting Great feel in the hands, fits like a glove, I could shoot all day long! Rear LCD screen, OH MAN this thing rocks: super bright big and accurate Raw files you gotta love, very good noise control, responsive and colors to lust after High speed 6.5 fps shooting! I have yet to hit the limiter when shooting high speed

Cons: Power Switch location Rear LCD shooting info has to be turned on each time and no auto-off when brought up to face Camera user settings C1, C2, C3 lose on-the-fly updates when camera goes to sleep Neutered auto ISO range only goes up to 800 ISO. I would love if it allowed me to adjust!

Overall Review: Canon 40D Review These are my personal thoughts and feelings from the first days with my new Canon 40D after having had a Canon Rebel XTi for about a year and a half after having taken about 30,000 photos with the Rebel and now about 2,000 with the 40D. These are only my personal feelings your mileage may vary. It fits my hand like a glove; I especially love the rubberized coating around the right grip. Where did everything go? My power switch and screen display. You better have your owner's manual handy because this is a different camera from the Rebel XTi. WOW this camera shoots fast! It has a precision to it and speed both in focus and number of shots my Rebel just does not have. Got to buy more CF cards though as they fill fast shooting in Raw at 6.5 FPS and they are bigger then the old Rebel Raw files. I continue to be impressed with the ability of the Canon 40D Raw images. Not only are they a leap beyond the XTi Rebel in appearance they respond much better t