Why does my ball head settle slightly after locking a camera with a 300mm lens?
Asked 4/6/2016
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2 answers
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I’m using a Sirui T-005X tripod with a Sirui C-10X ball head. With my Nikon 300mm f/4 AF mounted via the lens collar, I lock the plate and ball head, but when I let go the camera/lens settles upward slightly—just a few millimeters, sometimes close to 1 cm—then stops. I don’t notice this with lighter lenses.
Is this normal ball-head “drift” with a heavier telephoto, or does it suggest the head is undersized or not suitable for this kind of setup?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
10y ago
2 Answers
5
It depends how the head is made. Most ball-heads move a little which is called drift. A millimeter or two is common but should not be more for anything reasonable. Otherwise it makes framing rather hard.
Certain ball-heads are designed specifically to prevent this and are called non-drift heads. Manfrotto for example has a Hydrostatic series like that. The one I personally use if the 468MGRC4 which took me too long to buy because I considered it too expensive and bought poorer ones instead.
Should you want no drift at all, what you need instead is a geared-head. Those are costly models that constantly hold the camera in an exact orientation and use gears to move the camera while its weight is constantly supported.
Originally by user1620. Source · Licensed CC BY-SA 4.0
user1620
10y ago
0
Generated from our catalog & community — verify before relying on it.
A small amount of movement after tightening a ball head is normal and is commonly called drift. Many ball heads settle a little as the lock fully loads under the camera/lens weight.
Based on the answers, your 300mm f/4 plus camera body is still well below the C-10X’s stated load rating, so this doesn’t automatically mean the head is over capacity. That said, manufacturer load ratings can be optimistic, and real-world stability depends not just on total weight but also on leverage and how off-center the load is.
A few millimeters of settling is common. If it’s closer to 1 cm and makes framing difficult, that suggests the head may be less than ideal for this setup, even if it can technically hold the weight.
If you want less settling, look for a better ball head with low-drift or “non-drift” design. If you want virtually no movement when locked, a geared head is the better choice. Also, using the lens collar is important with a heavier telephoto.
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