Review on SmallRig 15mm Carbon Fiber Rods (Non-Threaded) - 4 inches, Pack of 2 - 1871: Compatible with 15mm Rod Support Systems by Jamie Sanchez

This review relates to 12" SmallRig carbon rods. The "rods" are actually open tubes with a measured outside and inside diameter of 14.93 mm. 11.04mm. The tube size was very consistent in length and between the two tubes I received. The fit was perfect on all 15mm system components I tried it with. Although the claimed length was 12", the tubes are clearly made to metric measurements and both are 30.003 cm (11-13/16") long. Relatively thick walls provide high strength with no appreciable deflection under 15 kg side loads. The surface finish was very smooth. Each of the 30-cm -tubes weighed 37g (1.25oz) only 54% the mass of 15mm anodized aluminum tubes of comparable length the size is the same I don't know if these reviews for other lengths than 30 cm or earlier production batches of tubes were considered. However, the tubing I received (marked with SMALLRIG white paint) had a constant outside diameter of 14.93 mm (0.0028 inch undersize) as measured with a recalibrated Mitututo model 193 microns (carbide surfaces and 0.01 resolution/ Accuracy). Diameters were measured with a Helios caliper with internal scale (0.025mm accuracy) I was really surprised by the accuracy of the tube dimensions. I bought 15mm anodized aluminum tubes and rods with significantly more variety than these carbon fiber tubes. Constructed from 30cm long carbon fiber tubes. Detachable handle on the front and 38mm Arca-Swiss clip on the back for fixing telephoto lens 0.5lbs and camera installation in the field.