Hi. I'm from Scotland & I'm interested in your Jobu Junior 3 Deluxe gimbal head to use with my Sigma 150-600 Sport lens & Nikon D500. I believe I would need an additional attachment to attach my lens to the gimbal & if so, can you advise me.
You need to attach an Arca Swiss plate to the bottom of your lens foot. Or, you could replace the OEM foot with Jobu's replacement foot #LF-S156S (that's what I did). The replacement foot is Arca Swiss compatahle and its also longer than the original foot making the lens easier to carry and balance on your gimbal head. However, for that camera and lens weight I would recommend you buy the HD4 model instead.