Converting a 90mm into a 140mm Soft Focus
Mamiya UK Forum: General: Converting a 90mm into a 140mm Soft Focus
By Ivan Bruce on Monday, August 30, 2004 - 10:31 pm:

A MF camera repair person told me that it's possible to remove the front elements of a 90mm lens which turns it into a softer focusing 140mm lens. Two other people confirmed this. Has anyone done this and how do you like the performance?

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