The Dolica B204 Professional Dual Knob Ball Head is an upgraded classic design ball head that utilizes a dual knob design to independently lock pan and tilt separately. The advantage of independent locking knobs is they are able to isolate tilt angle and pan across the same tilt angle. This is a great feature for horizontal panorama shots as well as shots that require the same tilt angle.
This heavy duty ball head can carry a camera load of up to 17 lb and makes it suitable for entry, mid and pro level DSLRs. It has upgraded features such as degree angle marks and anti-slip quick release lock. The Dolica B204 comes with a quick release plate with rubber padding and a 1/4 thumb screw to ensure a tight fit with camera.
Reviewed by 1 customers
The good: Easy to use quick release with spring loaded catch to prevent accidental detachment. The large ball clamp is very well designed, it does not take much pressure to lock it in place and it is possible to use varying degrees of pressure to smoothly pan / tilt small to large lenses. Ball head rotates smoothly with very little sticking. Easily handled my D300 with an older (ie heavy) 200mm lens, no creeping even when I put pressure on the front of the lens barrel. Very solid build. The Bad: The finish is not first class, but seems to hold up well enough. Some image shifting when locking down the ball. No matter how hard I tried I could not keep the image perfectly as framed once I locked down the clamp. Note that this shift is barely noticeable unless you are doing critical macro work. Not a deal breaker but something to be aware of. Also, the bottom pan knob needs to be pretty darn tight in order for it to be 100% locked down. All in all much, much better than I expected for a budget ball head.