has anyone used the cheap Jieying back adapters available on eBay? Do they place the sensor at the same location as the factory ground glass? the options are close to or over $1k for the Linhof official adapter vs $200 for a Jieying. (I bought a jieying adapter some years ago, but that was to cannibalize for parts to build a mini graflock back for the 6x9 linhofs, but I cant get it back together to measure)
An example: https://www.ebay.com/itm/125015949287
I have my doubts becuase the simlar adapters for Arca 6x9 are not explicitly N or non-N which could mean non-N or it could mean they didn't really try or care that they matched the sensor plane to the glass plane..
(even if I end up with a live view capable CMOS back, allowing focusing on the glass opens up some future possibilities.)
An example: https://www.ebay.com/itm/125015949287
I have my doubts becuase the simlar adapters for Arca 6x9 are not explicitly N or non-N which could mean non-N or it could mean they didn't really try or care that they matched the sensor plane to the glass plane..
(even if I end up with a live view capable CMOS back, allowing focusing on the glass opens up some future possibilities.)