For a while now, I been looking for a camera slider that's works well, is affordable and reliable. Upon further research, I finally decided to go with the Neewer 39.4" carbon fiber camera track slider. After months of using it on my GH4, I would have to say it's solid and the footage looks as smooth as butter. It's selling right now for $99 US which is pretty darn good compared to other sliders which go for $200+.
Check out my product review video. If you have any questions, shoot me an e-mail at firstname.lastname@example.org or comment below. Cheers!