Quite useful 4 1

Property me the part bought in order to make occasional upright shots from the tripod, including for Panorama. Principal advantage of such L-rail: The camera sits further centered on the tripod, be preserved so that gravity and the axis of rotation. Of course, is not a substitute for a nodal point adapter, but for casual Panoramiker like me enough.

+ Price compared with Kirk, RRS, etc.
+ Not camera specific

- Not camera-specific, so should be carefully aligned and supported. Close to the body go with the D7000 not on the covers. If you leave enough space but it comes. However, creating a strong bend the USB cable, if one eg uses a YN-622N-TX as remote trigger.
- The U-ring on the mounting screw leaves no room, for example, to attach the carabiner of a Black Rapid strap it. Therefore, the L-rail mE makes sense only in steady state operation, but can not stay as a permanent solution plan at least for me.

Overall, however, a solid product with a recommended relative to comparable products and good price in my opinion.