Novoflex MiniConnect ac adapter which is not a big

which is not a big surprise but also

It provides extra stability for long lenses when mounted to a tripod

The A900 is a solidy built

No gimmicks

This heavy-duty head supports up to 10kg (~22lb)

Novoflex MiniConnect ac adapter which is not a bigThe Novoflex MiniConnect is a well made quick release system that uses a tiny camera mounted nub to connect it securely (VERY SECURELY) to a spring loaded locking base. You can use it on a tripod, or as a base for a removable strap (there are a pair of loops built in.) In excellent condition, with a single camera nub. Image is for illustrative purposes only. Actual item may differ slightly.