Nikon's budget tele zoom — the manual-focus Series E 70-210mm f/4, constant-aperture and well-regarded.
The Nikon Series E 70-210mm f/4 is a telephoto zoom from Nikon's budget Series E line, introduced in the early 1980s. Priced below the Nikkor zooms but sharing the F mount and Ai coupling, it covered a short to long telephoto range at a constant f/4 aperture and earned a good reputation as an affordable tele zoom.
This is a manual-focus Nikon F lens with a constant maximum aperture of f/4 across a 70-210mm zoom range, built with Ai-compatible aperture coupling for full-aperture metering. It operates with normal reflex viewing on the F system. Only the verified focal range, aperture and mount are stated; construction details are omitted rather than guessed.
This constant-f/4 tele zoom covers portrait to long-telephoto framing with steady exposure and viewfinder brightness across the range, and it is well regarded for its sharpness among Series E lenses. It suits portraits, sport, wildlife and travel where a versatile, affordable tele zoom is wanted. The constant aperture eases manual exposure.
On the used market the Series E 70-210mm is common and inexpensive, a strong-value manual tele zoom. Inspect the elements for haze and fungus, check coatings, confirm the aperture blades are dry, and test the zoom and focus for smooth action, as Series E barrels can loosen with age. It adapts to mirrorless as an affordable manual telephoto zoom.