CAMERA Support & Rigs Rig Accessories Camera Mounting Hardware Camera Knob for Dovetail (3/8) Watch this product and we will notify you once it is back in stock. The product is now watched We will notify you once the product is back in stock again. E-mail Watch this product Your personal information is processed in accordance with our privacy policy. Camera Knob for Dovetail (3/8) Camera Knob for Dovetail (3/8)Machined knob featuring a 3/8-16" stainless steel male thread with a shoulder for use with dovetails.