By Steve from Portland, OR on 2/23/2008

This is somewhat embarassing, but here goes...the split field lens rotates as I would expect. However, it also comes apart from the rim of the lens, except for dangling at the corners. You can push it back into the lens rim, but I didn't know if that behavior was as designed, or if it had become unglued from the rim.

So, I used some super glue and glued it back into the rim, still able to rotate because the rim rotates. However, the glue smeared over the lens and I was only partially able to clean it off.

So, I'm glad I didn't pay a lot for it. Its still useful. If Hoya had put a small leaflet in the box explaining how it works, I could have determined if it was damaged or not.

Couldn't find anything on the web to help either.

Not a big deal because it was inexpensive, and still works.

I can use it to increase the depth of field so that, for example, a sign close up is in focus and the background behind the sign is in focus as well. Adjusting aperture alone sometimes will not be enough, this is wear the split field lens can help.