Naturally the focus at close range is very difficult. This also applies to the Panasonic Leica DG 2.8 / 45 mm. The manual focusing never gave me great pleasure. Now, with this lens you can to focus accurately and quickly also in the macro range, if you - works with 2x electronic zoom - in a limited loss in image quality. Then one is incredibly fast and flexible in picture composition.
The problem remains the focus in the macro range when the contrast is not sufficient, or the object was not targeted precisely. Then the lens extends through to infinity. It has proven itself in such cases to keep your thumbs in front of the lens and to focus on these to move quickly in the macro range. This issue, there are probably at all macro lenses.
Who focuses like manually, have to get used to the focus ring on an intensive rotational work.
Due to the unbeatable maneuverability and the resulting universal use in the macro range, the lens is classified as outstanding and is probably ultimately worth the price.