I ordered an 4x4 Pro Optic filter holder from Adorama recently when it was on sale and it came with a FREE bonus...the adapter ring (in my case a 67mm). My intentions (to begin with) is to use it for securing welding filters for long exposures...poor man's Big Stopper.
Anyhow, I was all excited when the package arrived. But, upon opening it I discovered that the 67mm adapter ring had been backordered. In talking with an Adorama rep he gave me two options...send the filter holder back for credit or wait for the backordered adapter ring to become available though he said they have no idea when it will be available (but it's an Adorama brand).
The filter holder seems like it's nicely built, but without the ring it's useless. I see some cheap adapter rings on eBay, but I have no idea whether they will work with the holder...are these adapter and rings a standard size? Is there a good chance a ring from a different maker would work?
I'm not sure what to do...send it back, wait for the backordered ring to (hopefully) become available, or to try a second-party ring.
Anybody got a recommendation?