Leica Diopter Correction Lenses provide near or far-sighted users a clear viewfinder image without the use of eyeglasses. Ten Diopter Correction Lenses are available, from -3 to +3.
For the M series.
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Comments about Leica -3.0 M Diopter:
Like all things Leica this is well made and so small you don't even know it's attached.
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