This WOLFPRO MC AUTO MACRO 1:4 ~ 1:10 28mm 1:2.8 has the closest distance 19cm. The regular 28mm f/2.8 lenses usually have the closest distance 30cm.

The 5th picture was taken at the closest distance on a full-frame camera, Sony A7 II. Comparing with the 6th picture that was taken by a regular 28mm lens that doesn’t have macro function on the same camera. The difference is very big.

The aperture blades are free of oil, the aperture ring doesn’t work, but the aperture can be adjusted by the “”close-open” ring on any FD lens adapter to any mirrorless camera. Maybe you can fix the issue with the aperture ring.

The glasses inside are clean and clear, no fungus, no mold, no haze, no dusts. The surface of both end glasses are free of imperfections.

I know that the end glass group is very easy to be screwed off with hands. No tool is needed.

Thanks for watching and buying.