Vivitar 135mm f/2.8 Compatible T System Type 2

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The Vivitar 135mm f/2.8 Compatible T System lens, Type 2, was the later of two 135mm preset T mount lenses distributed by Ponder & Best (later Vivitar) in the 1960s as a 135mm Basic Telephoto lens. Ponder and Best designated the family to which this lens belongs as the Compatible T System. With only one exception, the Compatible T System family consisted of prime lenses, including mostly long telephoto lenses. Most of the early family members, known as the Type 1 T mounts, were made by Tokina, known at that time as Tokyo Koki. The manufacturer of the Type 2 T mounts, such as this one, is currently unknown. It's possible that it was Tokina, Kino Precision, or another company. The lens is marked "Lens Made in Japan'. The Type 2 T mounts are easy to distinguish from Type 1 T mounts by several visible identifiers: the Type 2 T mounts have a smooth flat area at the bottom of a focusing ring, while Types 1 T mounts have a smooth tapered (angled) area at the bottom of the focusing ring; Type 2 T mounts have space between the two preset rings with markings that indicate aperture values when a 2x Tele Converter is attached, while Type 1 T mounts usually have the two preset rings immediately adjacent to each other with no markings on the barrel between the rings.


  • Badging: Vivitar
  • Manufacturer: unknown
  • Manufacture Date: ca 1968?
  • Focal Length: 135mm
  • Aperture Range: f/2.9 - f/22
  • Diaphragm Type: Preset
  • Diaphragm Blades: 15
  • Filter Diameter: 55mm
  • Minimum Focus: 1.8 m (6 ft)
  • Mounts: T mount
  • Elements: 5
  • Groups: 5
  • Weight: 361 g (12.75 oz)
  • Accessories: Screw-on metal lens cap
  • Example Serial Numbers: 199006, 199315, 199355, 202092, 205961
  • Original Stock Number(s): 20-1087