2 days ago, I rented a Tamron 150-600 to try it out before I decide if I should purchase it. Throughout the day of getting it, my tripod was able to hold up the weight, granted it was 1/300 of a second and not long exposures. Last Night, I went out to do some long exposures with my lens and noticed that it wasnt hard for the the lens to move. There wasnt much in the way of movement for the Tamron lens attached to the tripod, but touching the camera even for just a few seconds seemed to shift out of focus and then I would have to refocused the lens (Just for long expsures). Do I need to invest in a Gimbal head for taking photo's of wildlife, or should I invest in a heavier tripod?
Also, my lens was off to the side of the ballhead since my Acratech GP has a gimbal feature.
Here is the tripod I am currently using:
Induro CT 113 - Tripod weight capacity 17 pounds
Acratech GP Ballhead - Tripod Weight Capacity 25 pounds
Canon 6D - 1.7 pounds
Tamron 150-600 - 4.5 Pounds.