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The Vivitar 70-210mm f/4.5-5.6 MC Macro is a third-party telephoto zoom lens built for Pentax K-mount 35mm film SLR cameras, offering photographers of the film era a versatile telephoto range paired with close-focusing macro capability in a single lens. Vivitar was among the most prominent third-party lens brands of the period, and this zoom was a popular, affordable alternative to first-party telephoto zooms.
The lens covers a 70-210mm focal range with a variable maximum aperture of f/4.5 at the wide end narrowing to f/5.6 at full telephoto, giving photographers solid telephoto reach suitable for portraits at the shorter end and more distant subjects toward 210mm, a popular telephoto zoom range during the film SLR era. The lens uses a push/pull (one-touch) zoom and focus mechanism, allowing photographers to zoom and focus with a single hand movement along the barrel.
A dedicated macro focusing mode is built into the lens, offering a maximum magnification of up to 1:4, allowing for closer focusing distances and modest close-up work in addition to standard telephoto shooting, giving photographers additional versatility without needing a separate dedicated macro lens. The “MC” designation indicates multi-coated optics, helping reduce flare and ghosting while improving contrast and color transmission compared to older single-coated lens designs.
As a fully manual K-mount lens, focus and aperture are controlled entirely by hand, with no autofocus or electronic communication with the camera body, consistent with the manual-focus Pentax K-mount SLR bodies it was designed to pair with; the PK-A version of the mount, when present, allows for improved metering functionality on certain compatible Pentax camera bodies. Build quality is typical of third-party telephoto zooms from this period, generally a metal and polycarbonate barrel construction that balances durability with manageable weight. The lens accepts 52mm filters.
Because Vivitar produced multiple versions of its 70-210mm zoom lenses across different optical formulas and production runs, with variations in exact minimum focusing distance, weight, and aperture blade count between individual units, photographers evaluating a specific example should confirm these details directly against the lens in hand.
Key Features
– 70-210mm telephoto zoom for Pentax K-mount
– Maximum aperture f/4.5-5.6 (variable)
– Macro focusing mode (up to 1:4 maximum magnification)
– Push/pull (one-touch) zoom and focus mechanism
– Multi-coated (MC) optics
– Fully manual focus and aperture control
– Metal and polycarbonate construction
– 52mm filter thread
– Compatible with Pentax K-mount 35mm film SLR cameras
