Benro GH2 brand_Cartoni The Nikon PB-6E is a

The Nikon PB-6E is a bellows extension for use with the Nikon PB-6 bellows (sold separately)

Optics are clean and clear

so there's a huge variety of lenses available

focus is smooth

Benro GH2 brand_Cartoni The Nikon PB-6E is aThe Benro GH2 is a very sturdy gimbal head designed to support up to 22kg, which should pretty much cover anything you could plausibly mount. I'm sure some of you are disagreeing, and if so, I guess this head isn't for you. But for anyone else, that's like three Canon 800mm f5. 6 lenses mounted to three EOS 1DX bodies with a couple extra kilos to spare so, friends, it's enough. In near new condition, with only the most minor cosmetic minor wear.