for the low price a super power

+ Positive +

-Bisher I have tested it for me mainly on macro and wildlife photography. The images are sharp and give details and contrasts very well again.
-Straight for photographing birds and shy animals MMN very useful because you can maintain a greater distance to the motives.
-the weight of the lens on the camera seemed to me even after long photo tours not annoying (they had all the time in hand, without a camera bag)
-The Included sun visor can be reversed for storage tweak the lens and is always with you, without interfering.
-zusammengeschoben it is relatively compact has even fitted with camera in my smallest camera bag; D
-makes me very robust; I had to not be afraid to take it off-road and over hill and dale with
-Tamron Granted after online registration of the lens on the manufacturer's homepage a guarantee extension

-negativ-

-The Zoom ring is a little stiff when you're not used to it-at the beginning was the setting of some jerk of his hand; However, it works for some practice also very good and fluently.
-Since The objective no opt. Image Stabilizer has, it is somewhat difficult at slow shutter speeds to obtain steady images without a tripod out. With sufficient brightness but that's no problem - playing dogs example came clearly focused on the picture. (As far as I know, Tamron brings soon a version of this lens with image stabilizer, but then also a rod more money out)
-The Motor autofocus is "relatively" noisy (for me but acceptable)

Conclusion: for the purchase price I got a super telephoto zoom, with which I can first grope me to the subject of "greater focal length" and play around. With the results I am very satisfied so far.