Anyone have experience with this specific lens board adapter? They are currently listed on eBay for $75 - $80 from a couple of sellers in China.
I read a positive review in this forum of the Tyger RJ brand adapters from the RJ Camera store (JinFinance on eBay), but they are not currently available.
My concerns about the Jieying brand adapters are: fit to Sinar camera, fit to Toyo 110mm lens board, and durability with light to medium use.