1. The body is made of magnesium aluminum alloy. Only 650g, light but sturdy and durable, and the load capacity is up to 3kg;
2. The rail adopts durable metal slider, and a geared drive system which enhances accuracy and speed of adjustment of the rail greatly. This item has two precise double scales, and allows precise distance modifications; the rail allows 5cm moving leftward/rightward, and 10cm moving forward/backward;
3. The rail positioning adopts adjustable locking knob, and there is a 1/4" standard screw that fits all professional DSLR; the rail's drop panel is made from rubber, and has a wave crest construction. It not only can increase the friction between the rail and camera in order to prevent sliding, but also can reduce camera's abrasion. The design is made in great consideration for your camera.

NIKON D3X/D3S/D3/D700/D300S/D300, D2X/D2H/D200/D1H/D1X/D100 series;
NIKON D80/D70S/D70/D60/D50/D40 series;
NIKON D90/D5000/D3000 series;
FUJI S5Pro/S3Pro/S2Pro/S1Pro;

CANON 1D/1Ds series, EOS5D Mark II/5D/50D/40D/30D/20D/10D series; CANON 1000D/500D/450D/400D/350D/300D series;

PENTAX K-X/K-7/K20D/K200D/K10D/K100D;
Samsung GX-20/GX-10 series;

SONY a100/a200/a300/a350/a500/a550/a700/a750/a850/a900 series;
MINOLTA a7D/a5D series;

PANASONIC GF1/GH1/L1/L10 series;

Material: Magnesium aluminum alloy
Net Weight: Approx. 650g
Color: Black
Load Capacity: Approx. 3kg

1 * 4-way Macro Focusing Rail Slider