Infinity focus problem

[Mapet]

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I have testet two 28/2.8 asph lenses and one 35/2 asph and all of them focus past infinity. I have no problems at all with a dozen of other Leica lensess. Is this problem comon?

[luigi bertolotti]

Welcome to the forum !!!

Strange that it happened on 3 lenses (new ?, on the same camera ?) I have a 35/2 asph that is perfect (though bought used) : can you explain better the issue ? I mean, is that the lens, with focus ring at infinity , doesn't focusu correctly at infinty OR lenses focus correctly at infinity but the RF patch does not align an object very far ? Of course, they are different problems.

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[Mapet]

The focus ring is at infinity but the lens wide open is not in focus for distant subjects. It is in focus when I move focus ring slightly forwards. For close targets the focus is spot on. What is interesting that 35/2 and 28/2.8 share similar body. I have checked these lenses with M9 and Ricoh GXR.

[thighslapper]

Are the actual pictures in focus ?

 

If they are, you are observing quite a common phenomenon with wide angle lenses. With such a large DOF the infinity adjustment is not that critical.

 

If the photos are out of focus with infinity set on the lens ...... and with multiple lenses ..... I would be suspicious about the rangefinder adjustment.