View Full Version : Canon 70D

Vipin Sharma
29-08-2014, 02:55 PM
Dear All , need some help.
Bought Canon 70D , I'm facing difficulty when it is used with Sigma 150-500mm.
The images are very soft , though with Canon 300mm f/4 the image are very sharp.

When I use 300mm f/4 + Kinko 1.4X Conv then the camera just hang up and doesn't response.
Do any body has every same problem.

Sabyasachi Patra
31-08-2014, 10:18 PM
These are typical problems with third party lenses. The firmware in these have to be updated to match the new cameras. You have to check with Sigma/Kenko.