Kamerar is probably best known for offering affordable products, and just last week they recently announced a new affordable 'Mark II' version of their line of video sliders. At first glance the new Mark II sliders appear the same, but the difference is a change on the sliding camera platform. The original Kamerar sliders used a 'dry bearing' similar to an IGUS rail that literally slides on the railing.
Original Kamerar Slider Dry Bearing
The new Kamerar Mark II Sliders now have 4 Full Roller Bearings that roll across the redesigned track.
Kamerar Mark II Slider with Full Roller Bearings
The bearings are smooth enough that you can tilt the slider and allow it to drift over to the opposite end (as seen in the video below). Another added feature is a pulley wheel has been installed on each end allowing you to tether a counterweight that offers smooth control during vertical slides.
The new Kamerar Mark II Video Sliders are found in three different versions starting at $145.00 and up over at http://PNCGear.com (click here).
Kamerar Mark II Full Roller Bearing Video Sliders