I did not think there was such a cheap and superior thing. I am very satisfied with Don Pischa for my purpose of use. It was disappointing that we could not install in the middle due to the position of the screw hole when attaching the joint bracket if we wanted greed. Since it solidifies on a tripod, it is well-balanced when it is equalized on both sides. There is nothing else to say.
When thinking about the slider's own work, it is difficult to produce up to the slide part, so I found this product when I searched for a product that could be used. The movement of the slide part is very smooth, but when you attach a large camera, it vibrates back and forth. Those who plan to attach a big camera think that the wide R40 will be more stable. If vibration or vibration occurs periodically or partly as in other people's reviews, it will be gone if you clean the grooves and rollers. Because it is made precisely, care must be taken so that dust and dirt will not stick to it.
If you slide it, you will hear a vibration and sound at regular intervals. If you can not slide smoothly and apply no downward force, the slide will clog. It seems that it is not suitable for purpose use.
I will keep on thinking that it would be a useful time to be able to buy such a thing. I am happy to be in an era when amateurs change their specialty materials. It is wonderful if there are advice in the production process such as combining with this material, if you want to make such a thing like this, you can combine with this material.