Perfect timing. I ordered the Goja adapter last week. It arrived today and fits perfectly and easily. Since I already had .58mm UV and CP filters and lens cap from an old pre-digital SLR, I ordered the adapter only. I also have an old lens hood--circular, not tulip, and it stacks on, too, but blocks the corners a bit at full wide angle.
Any way, my two hours of experience with the adapter suggest that it's a great bargain.
To get the menu back press F once or twice. The display toggles through three options when you press F. One of the options is to get hide that menu in order to increase real estate.