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Vivitar AT-21 Automatic Extension Tube Set - Accessory

Vivitar AT-21 Automatic Extension Tube Set - Accessory

Set of three extension tubes for Olympus OM SLRs. Allows for automatic diaphragm control by the camera. Set includes 12mm, 20mm, and 36mm tubes.

  • Size: 72 x 59mm
  • Weight: 231g
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Olympus OM

The Olympus OM system was late to the game, but ended up changing the rules of SLR design entirely. Introduced in 1972, this system turned the idea of big, heavy, metal 35mm SLRs on its head by being compact without sacrificing the build or image quality that made SLRs popular.

Yoshihisa Maitani, designer of the Olympus PEN and XA, also led the design team for the first OM SLR, the OM-1. It and the other single-digit OM series SLRs were designed to fit all the professional-grade features customers wanted in a body that anyone could carry around. The consumer-grade two-digit models, like the OM-10, are less well-built but come at a lower price point.

Olympus produced and sold OM series SLRs until 2002 when the company pivoted to digital cameras using the Four Thirds and Micro Four Thirds mounts.

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Vivitar AT-21 Automatic Extension Tube Set - Accessory Price History
Date Sold SKU Quality Control Price Image
28 Mar 2024 T25529 € 4,50 Vivitar AT-21 Automatic Extension Tube Set - Accessory Image
06 Jul 2023 T28543 € 15,38 Vivitar AT-21 Automatic Extension Tube Set - Accessory Image
03 Jun 2023 T34005 € 7,00 Vivitar AT-21 Automatic Extension Tube Set - Accessory Image
15 Nov 2022 A65266 € 12,50 Vivitar AT-21 Automatic Extension Tube Set - Accessory Image
03 Aug 2022 T14833 € 25,00 Vivitar AT-21 Automatic Extension Tube Set - Accessory Image
02 Aug 2022 A76330 € 13,50 Vivitar AT-21 Automatic Extension Tube Set - Accessory Image