Sigma 17-50 2.8 EX HSM lens is stuck and won't zoom. It takes pictures Ok and sometimes it even focuses in automatic. I can also take pictures without zooming. Can someone help on how to fix
I've already tried removing the lens and the it's in the unlocked position. The lens moves just a bit past 17 but it won't go all the way to 50.
Cameras - Sigma
Answers & Comments
Hi.
Probably the problem come from a loose screw inside zoom cylinder. Normally it happens due to constant use or vibration.
The GMR sensor is very sensitive to magnetized tools an needs an accurate position to function properly.
If you don´t have experiencie with this electronic systems, it is better you to contact Sigma Service in Ronkonkoma, N.Y.