johnnygoesdigital
New member
I've recently been using a Leica-M 90mm APO f/2, on my M9, however, the lens does not seem to achieve tack sharp focus even at f/11 and fast speeds. I used a magnifier to be sure the focus patch was correct, but still can't find it to be acceptable. In a portrait for example, one side of the model will be "soft" sharp, while the other side not at all. What's interesting, is that along the same plane in a small area, the focus is sometimes sharp then falls out and then back in again. Also, the contrast is very muted and washed. This is a rental, but thought this lens was the the most stellar performer. I understand that cameras sometimes need to be calibrated, but it seems this is not the case with areas in and out of sharpness.