Tamron AF 18-200mm f/3.5-6.3 XR Di II ...- User Rating: 
Summary for Tamron AF 18-200mm f/3.5-6.3 XR Di II ...- Nice amateur lens
Notes on Tamron AF 18-200mm f/3.5-6.3 XR Di II ...- I had the Tamron 24-135 lens and really loved it but it accidentally was dropped and broke so I replaced it with this because it was cheaper and I wanted to try the wider 18mm. It turns out this is an okay lens for casual shooting but I've noticed many shots coming back with poor focus points. I love the 18mm and can stand in a small room and still get the whole shot in. The 200mm is decent and seems to focus fine. This is not a lens for the professional but is a nice amateur stay-on-the-camera lens.
Tamron AF 18-200mm f/3.5-6.3 XR Di II ...- User Rating: Summary for Tamron AF 18-200mm f/3.5-6.3 XR Di II ...- good but not great lens
Notes on Tamron AF 18-200mm f/3.5-6.3 XR Di II ...- I've been using this as my primary lens with my Rebel XTi for the past 1.5 years. I tend to do outdoor photography (usually hiking with it around my neck) with a good amount of landscape and wildlife shots. This lens is great for getting the range from wide angle to telephoto without having to switch lenses (out on dirt trails) and for not breaking your neck with weight. I've gotten some great shots with this lens, but I can't blow up many of my wildlife photos because of the loss of sharpness past 100mm. I'm still undecided if the versatility of this lens on long hikes outweighs the loss of sharpness (which isn't really noticeable if you just print 4" x 6"--but who wants to do that with prized rare photos of wildlife?). I'm still a newbie to photography, but I'm already starting to get the itch to invest in some better lenses. For now, I think I'm just going to get the Canon EF 100-300mm lens to give me the sharper telephoto images that the Tamron 18-200mm leaves me wanting.
Tamron AF 18-200mm f/3.5-6.3 XR Di II ...- User Rating: Summary for Tamron AF 18-200mm f/3.5-6.3 XR Di II ...- Tamron lens produces vivid colors and accurate skin tones
Notes on Tamron AF 18-200mm f/3.5-6.3 XR Di II ...- I am a professional portrait photographer and needed another lens for my portrait room. My two Sigma lenses gave out within a week of each other and I was told Tamron was the way to go. My images have more color punch to them. I am extremely happy with this lens.
Tamron AF 18-200mm f/3.5-6.3 XR Di II ...- User Rating: Summary for Tamron AF 18-200mm f/3.5-6.3 XR Di II ...- Better lens than expected. Better than kit 18-55
Notes on Tamron AF 18-200mm f/3.5-6.3 XR Di II ...- I wanted a walk around lens to replace the kit 18-55 canon lens. The reviews that I read were not very good but for $350 there is not much to choose from. I was pleasantly surprised when I did some tests at home at different focal lengths and F stops and the Tamron did a lot better than the kit 18-55 lens! I then compared it to my canon 28-135 USM IS lens and they were pretty comparable in image quality!!
The only down side to this lens (the only reason it is not getting 5 stars) is the poor focusing speed in low light. Apart from that it is way better than the standard lens that comes on the canon rebels.
Tamron AF 18-200mm f/3.5-6.3 XR Di II ...- User Rating: Summary for Tamron AF 18-200mm f/3.5-6.3 XR Di II ...- Not very good
Notes on Tamron AF 18-200mm f/3.5-6.3 XR Di II ...- I am a fairly serious photographer, and I have a pretty extensive lens selection. I wanted an all-in-one lens for days that I didn't have specific shoots planned, but wanted to keep a camera with me just in case. I have used Tamron lenses in the past, and the ones I've used have been pretty good. Unfortunately this one isn't nearly as nice.
The main issue I have with it is that it can't focus very well indoors. Now I realized before I bought the lens that it probably wouldn't focus that quickly, or quitely, but I'm telling you, it has real issues focusing in low light. Even with a speedlight attached to the camera it still has issues.
Sometimes even in good light it takes it a couple of passes to focus, so you have to really pay attention to make sure you're getting an in-focus picture.
