This third-party battery grip for Nikon Z6/Z7 cameras has a shutter button - Nikon Rumors
Nikon D50 6.1 MP Digital SLR Camera - Lenses and Cameras
Nikon D200 - Wikipedia
Where to buy Vertical control battery grip - nikon d850
Nikon MB-D10 Multi Function Battery Pack for D700, D300, D300s at KEH Camera
The Vello BG-N19 Battery Grip for Nikon D850 - Photofocus
Hahnel announce battery grip for Nikon Digital SLR | ePHOTOzine
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Meike MK-50D Professional Battery Grip for Canon 50D and 40D | eBay