Definitely a good item to have. Reduced a lot of CA when using high power lenses. Brings out a lot of the blue in the sky, as well as the color of trees and grass.Camera shots using an EOS T7 w/ 300mm. First shot without the lens, second shot with it screwed on.

This amazing lens was perfect for my attempt to be a low key tourist with only my iPhone instead of a bulky DSLR. Once placed correctly over the lens, it worked like a charm. A bit awkward to adjust to the right angle over the phone lens but 100% worth it for wide-angle shots!

Decent lens.Be careful when ordering this through Amazon. I received the lens without the Canon manufacturers box. No real protection when transporting.The lens, a delicate piece of equipment was just packed in bubble wrap and shipped in a box.Not what I’d expect for a item at this price.

is a nice camera, but the exterior material is very cheap and gets scratched very easy, i strongly recomend that if you are going to practice water activities buy a protective underwater waterproof case, because i did some snorkeling and a little bit of water got inside of the front lens

This camera is a nice upgrade from the Hero 2. I can just dip it in the water and it won't be damaged. I love the fish eye lens and the quality of the picture. The only thing bad is that the time lapse just takes hundreds of pictures in a row instead of a video. Overall a great product

I recently moved into the category of "serious impassioned amateur photographer" and, after a healthy dose of research, purchased the Canon 20D D-SLR (see my previous review of the camera and experience with it). As is necessary to all impassioned photographers, the lens selection(s) is tantamount to the best photo, as seen by the photographer's inner eye. As a result, when I decided to purchase the 20D, I wanted the broadest breadth of lens exposure possible in the fewest possible lenses.In large part, my search came to a rapid halt when I ran across this lens, the Canon EF 70mm-200mm f/2.8L IS USM Telephoto Zoom lens. While this lens is heavy in terms of weight (approximately 2.9lbs) and price, it is easily the best lens purchase I've made, hands down. I have paired this lens with the Canon EF 24-70mm f/2.8L USM Standard Zoom lens and a 2x telephoto extender, and I am set for most any shoot. I have read reviews regarding quality degradation when shooting with the 2x extender however, I've not experienced that (perhaps it is my inexperience...but my photos don't show it!). The 2x extender has provided me with exposure options from 24mm to 400mm, with the high quality expected from Canon "L" lenses.A few words about IS (image stabilization)...I love to take shots of the moon. First, to get really great shots, one must have a reasonably telephoto lens (that is, if you want to actually see the cheese). The next issue is simply, how do I keep the moon from looking blurry even though the night is totally clear? The answer is simple: get a tripod or get a Canon lens featuring image stabilization. The IS feature has allowed me to take my best moon shots yet, and yes, the cheese is quite visible and quite clear. IS is a must for those shooting without a tripod.All told, this lens is incredibly rich in features, handles well for a large telephoto, has a tripod bracket for easy attachment to a tripod, and is pretty much the nuts for those of us not fully versed in photographic knowledge. While not the most inexpensive lens around, the features and product results afforded by this lens is well worth the cost. I'd buy it again without hesitation.

I am very happy with this lens package - it contains a macro lens which is great for zoomed in crisp shots of subject details (using it on flowers mostly) and a wide angle lens which makes for much better quality photos of outdoor subjects where a wider lens is needed to capture more of the scene. Comes with everything you need - AND a nice touch - a link to 3 easy to follow videos from the maker on how to best use both lenses and the light they include. Love the little extras - lens cloth, travel case, break away lanyard to hold the lens around your neck, charger for the light. Great product at an affordable price. I'm so glad I bought it!

This is a great adaptor for a reasonable price! Love how you can mount the tripod to the adaptor in lieu of the camera to offset the weight of a heavier lens. This costs nearly twice as much if you buy it in Henry's or Vistek. I purchased it in the morning and it arrived the very same evening. Very pleased.