ecliffordsmith
New member
Hi All,
Do you know if a front or back focus issue should be consistent throughout the entire focus range? By this is mean can a lens be bang on at 0.7 and not at 3m for example?
My eyes are far from perfect and hence I wear glasses and I have noticed that at about 3m, consistent across apertures things seem to be a bit sharper a little bit behind the intended focus point. I have not done any real testing yet, I was just wondering whether the phenomenom could be lens related or eye related.
Do you know if a front or back focus issue should be consistent throughout the entire focus range? By this is mean can a lens be bang on at 0.7 and not at 3m for example?
My eyes are far from perfect and hence I wear glasses and I have noticed that at about 3m, consistent across apertures things seem to be a bit sharper a little bit behind the intended focus point. I have not done any real testing yet, I was just wondering whether the phenomenom could be lens related or eye related.