Macro Woe

[LightSpeed]

You want help with the Kenko tube set? First off...use the SHORTEST tube much of the time. The middle tube is useful at some times. The longest tube is almost useless for most people.

Use the longer focal length lenses or zoom focal lengths; with either the middle-length or the longest of the three tubes added to a typical 28-70 or 24-70mm, at the shorter focal lengths, the focusing point can be literally INSIDE the lens barrel.

Really short focal lengths, like 18-24mm on 1.5x bodies...are almost useless.

Spend about one half of an hour and begin with the shortest tube and one lens: figure out the Minimum Focusing Distance and the Farthest Focusing Distance. Get a "feel for" the focusing range that the lens has with the shortest tube on it, at the minimum focusing distance and at Infinity focus on the main lens. Then, proceed to the middle-length tube. Make yourself a simple chart with lens model, focal length used, and MFD and FFD figures. Within a week, you'll be nailing it.

Beat me to it.
Good post.

Luv, it's a very small jumping spider.