This manual introduces the Nikon DC‑Nikkor 105mm f/2 D lens, describing its Defocus Image Control (DC) ring, autofocus/manual focus operation, and recommended accessories such as focusing screens and filters. It also provides safety warnings and usage tips to help you get the most out of the lens.
Additional sections cover lens care procedures, built‑in hood operation, and detailed technical specifications, ensuring proper maintenance and optimal performance over the lens’s lifespan.
| Focal length | 105mm |
|---|---|
| Lens construction | 6 elements in 6 groups (plus built‑in rear glass plate) |
| Picture angle | 23°20′ |
| Aperture scale | f/2 to f/16 on both standard and aperture‑direct‑readout scales |
| Mount | Nikon bayonet mount |
| Weight | Approx. 620 g |
Press the DC‑ring lock button, then rotate the DC ring toward the rear (R) side; the background will become more blurred when the DC ring’s F‑number matches the aperture in use.
For autofocus, press the A‑M ring lock button and turn the A‑M ring so “A” aligns with the A‑M index; set the camera’s focus mode selector to autofocus. For manual focus, turn the A‑M ring so “M” aligns with the index and set the camera to manual focus.
Pull the hood out and turn it counter‑clockwise for two rotations to open; to store, turn it clockwise and push it back into place.