Understanding computer parts: The basics

This Prototype Laptop Crushes Everything I’ve Ever Seen

This build is going places

How screw-drive autofocus works on a DSLR camera. Screw-drive autofocus uses a motor inside the camera body to mechanically drive the focusing mechanism in the lens. A small, slotted shaft (the “screwdriver”) on the camera mount engages a corresponding slot on the lens, spinning to move the optics and achieve focus. It is common in older DSLR systems, particularly Nikon (D-series), Pentax, and Minolta/Sony A-mount. Camera: Nikon D90 Lens: Nikkor 50mm f/1.8D #autofocus #nikon #cameraforbeginners