A lens for many applications

This lens I bought to go a frequent change of appearance out of the way.
The Tamron sums from the feel good to her, even if all adjusting plastic sind.Die rings for zoom and one. Focus run evenly but lightly gedämpft.Dadurch is accidental changes erschwert.Der body and the bayonet are made of metal, but the objective for a GX7 is not too heavy.
The divided lens ensures a good stability of Frontlinse.Auch is thus at full focal length the lens is not too large.
The picture quality is for me totally in Ordnung.Natürlich one must make do with a Megazoom with compromises.
But the aberrations and vignetting described several times I can not confirm that.
Postive noteworthy is the relatively low price with the lens hood is included.
However, I have criticisms:
Obviously, the AF-stepper motor needs quite a lot of power! This means that in low light conditions and multiple focal Try the camera's battery will drain faster.
The second criticism:
It is unreasonable for the customer, if you own only must investigate when a new product, why the internal image stabilizer does not work the GX7 and it turns out that the manufacturer has not done his homework!
For the necessary update must provide at your own risk themselves!
After uploading the necessary updates the lens works with my camera as it soll.Alle functions are available even when the manual refocusing Autofokus.Ebenso the image stabilizer in 2 modes.
I am very grateful to the Amazon customers who hat.Vielen alerted to the required update Thanks!
many greetings,
Steffen Winkler