Top critical review
Spider-Holster Spider Plate with Pin
on September 23, 2015
This does not allow a Manfrotto 501 rapid connect sliding plate to mate with the Manfrotto 577 Rapid connect adaptor unless you mount the sliding plate on a slight angle. When on a slight angle you loose the ability to evenly tilt your camera. However, I've overcome this little engineering flaw by fabricating 1"x3"x.225" aluminum plate that screws to the spider allowing me to move the camera's sliding plate over an extra inch allowing the pin to clear the Rapid connect adaptor. Now I can switch from shooting hand held stills to mounting the camera to my fluid head tripod for shooting video. The Spider was close, but off by a massive 1". In engineering terms, dat be a lot.
So I gave it 3 stars.