Compact ball head battery door These Nikon filters are designed

These Nikon filters are designed for 39mm drop-in holders- they won't fit in standard 39mm threads (they're flared and coarser than "normal" filter threads)

though it does have a built-in closeup lens that allows focusing down to 0

you're probably saying

and it runs on 4AA batteries

Compact ball head battery door These Nikon filters are designedThis is a compact ball head (about 8cm tall and 3. 5cm across at the base) that would work well for a smaller tripod. It's well made of metal (except for the lock handle) and should support most small to medium sized cameras. 3 8" thread in the base for tripod mounting, reversible 1 4" 3 8" thread up to for your camera. Light cosmetic wear, good function.