The Sigma 18-200 DC OS HSM that TB just bought is shaking. Is there a problem? Ask for an answer! ! !

First of all, this question can't give you an accurate judgment of whether there is a problem or not, because you can't comment on what you have actually seen, so as to avoid complications.

Let's talk about my views and experiences on the problems you described.

When the lens of this grade is zoomed from 18 to 200, the damping of each focal segment will be very different, some places are light and some places are heavy. But there should be no serious astringency.

OS is Sigma's anti-shake lens, so your lens has optical anti-shake.

The working principle of optical anti-shake is to realize shake by shaking, that is to say, the image becomes stable in the viewfinder, but the actual lens shakes because of anti-shake. There will be a certain degree of lens looseness and noise at this time.

Focusing is also a mechanical result, in which there will be movement and certain noise.

Whether it is normal or not, I suggest you find a local experienced senior to help you have a look.

I hope I can help you. If you have any questions, please ask.