grichie5 wrote:
Thanks for your reply. I do use a Giotto MT 8361 tripod and a Markins Ball head. They are not the top of the line, but are excellent heavy duty items. Despite that, when I touched the lens to rotate the focus ring, I could detect camera shake in the viewfinder. Possibly because the tripod was on soft earth or mulch.
Other times, with tripod set on solid concrete surface, I've had no issue with focusing.
The ball head is probably fine, but the tripod may be a little light. It is normal to see some movement when you touch the camera. The test of a good rigid tripod is how quickly that movement abates. I can't find anything on your tripod, btw.