Asahi Optical Co. Macro Takumar 50mm f/4.0-22.0

Lens categoryMacro
Vendor nameAsahi Optical Co.
Type nameMacro Takumar
Product year1964
Focal min (mm)50
Focal max (mm)50
Focus min (cm)20
Aperture max4
Aperture min22
Element(s)4
Diaphragm blades8
Filter size (mm)49
Asahi Optical Co. Macro Takumar 50mm f/4.0-22.0

This is the 1st production version of the 50mm f/4.0 macro, which is also the only version with a preset aperture control. It is able to go to 1:1 magnification.

2 Comment(s). Add a comment or Trackback

  • Rodrigue Galani  17:40 Mar 26, 2008 

    The Takumar 4/50 macro is a very sharp and ineteresting lens even wide open. I don’t think it can reach the 1:1 ratio but only 1:2. However, a converter or extension tube could help to reach the 1:1 ratio and better.

  • Andrew Sharpe  03:25 May 10, 2011 

    This lens does indeed reach 1:1. Only the preset ones did. The later models (non-preset) only reached 1:2 because they added an auto-diaphragm mechanism, and this mechanism did not allow this much movement. Look at the picture and you will see it is extended on both sides of the focus ring; the later auto version only extends towards the front.

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