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1 21410 2/7/2010
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(From company literature) Kenko 12mm Uniplus Extension Tube. Kenko Uniplus Tube (extension ring) is an accessory exclusively designed for use with standard AF lenses to shoot subject at closer distance with higher magnification. Perfect coupling with automatic aperture, TTL metering and AE mechanism.


  • Extension: 12mm
  • Dimensions (Length x Width): 12mm x 62mm / 0.5 in. x 2.4 in.
  • Weight: 60g / 2.1 oz
  • Available Mounts: Canon, Minolta, Nikon, Pentax
  • Notes: Diaphragm and metering coupling for full auto-exposure

Keywords: Kenko Canon Minolta Nikon Pentax Extension-Tube


Registered: August 2008
Posts: 3
Kenko 12mm Uniplus Extension Tube review by TCav
Review Date: 2/7/2010 Would you recommend the product? Yes | Total Spent: None indicated| Rating: 10 

Pros: Inexpensive way to get into macrophotography

Inexpensive way to get true macro shots. It doesn't have any optical elements of its own, so it doesn't introduce any new flaws, but it definately magnifies the flaws in the lens you hang on it.

These are basically the same barrels that Kenko uses for their teleconverters, but without the optics, so the build quality is very good.

I used it with a Minolta 50mm f/1.7, Minolta 70-210mm f/4.0 'Beercan' and a Sigma 90mm f/2.8 1:2 Macro lens. The flaws in the 50/1.7 meant I didn't use it often, but I'm very pleased with the results I got with the other lenses.


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