I have both the #8536 for the D5 Color Head and the #8537 for D5 Condenser Head and have no use for either. Both appear to be unused. Photos are available. I would like to trade for something of value I would use. I'm thinking perhaps a modern 8 X 10 film holder. Some in-date 8 X 10 film. If not, camera systems I use, Olympus OM and e-systems, Hasselblad, 4X5 and 8X10. Might look at a package of Brownie Hawkeyes. So, as you can see, almost anything other than perhaps a one-eyed pig. Need the adapter and have nothing to trade, I'll ship either at $45 including postage in the USA. This is about half B&H prices.