Vivitar Series 1 28-105mm f/2.8-3.8 Macro Focusing Zoom

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The Vivitar Series 1 28-105mm f/2.8-3.8 Macro Focusing Zoom lens was designed to Vivitar's specifications. It was marketed by Vivitar, likely beginning in the early 1990s, as the replacement for the Vivitar Series 1 28-105mm f/2.8-3.8 VMC Macro Focusing Zoom (note "VMC" designation on earlier lens). Both lenses are believed to have been manufactured by Cosina. The later lens has both exterior visual differences and different internals.

This lens was not part of the original Series 1 family as released in the 1970s, nor was it part of the Series 1 family when the John C. Wolf book on Vivitar lenses was published in 1980.

This lens is easily identifiable by 1) smooth rubber focusing ring with wide longitudinal flats 2) lack of "VMC" designation and 3) 72mm filter size.


  • Badging: Vivitar Series 1
  • Manufacturer: Cosina
  • Manufacture Date: ca 1991?
  • Focal Length: 28-105mm
  • Aperture Range: f/2.8 - f/22
  • Diaphragm Type: Automatic
  • Diaphragm Blades: 8
  • Filter Diameter: 72mm
  • Minimum Focus: unknown
  • Mounts: Nikon F, Pentax KA, others
  • Elements: unknown
  • Groups: unknown
  • Weight: 504gr
  • Accessories: bayonet lens hood
  • Example Serial Numbers: 09122000
  • Original Stock Number(s): 316090 (Nikon F)