Nikon AF-S Nikkor 300mm f/4D IF-ED - Nikon F Mount

The AF-S Nikkor 300mm f/4D IF-ED is a high-performance telephoto prime lens featuring a Silent Wave Motor (SWM) for fast, quiet autofocus. It incorporates Extra-low Dispersion (ED) glass to minimise chromatic aberrations and internal focusing (IF) to maintain lens length during operation. This model is highly regarded for its sharpness and relatively compact size compared to f/2.8 alternatives, making it a popular choice for wildlife and sports photographers who prefer shooting handheld. A known point of concern is the SWM autofocus motor, which can occasionally develop a 'squeak' or fail entirely; SDS tests the AF speed and sound thoroughly. The removable tripod collar is functional but sometimes criticized for stability; ensure the locking knob is present and tightens correctly. As with all long telephotos, check for internal dust and ensure the built-in telescoping lens hood slides and locks into position as intended.