Bruin
Noktonian
I figured out why TomA's excellent soft releases won't fit, but standard cable releases do. The thread size and pitch on all of these are identical, but the screw is conical - tapering to a point. Tom's soft releases simply don't get wide enough to engage on Yashica shutter releases. They work on other cameras because those shutter buttons are threaded for the tip of a cable release. Yashica's engage the cable release at a wider point, further up on the screw.
It turns out Fedka has soft releases with a screw that's fine enough at the tip to fit on your common RFs and wide enough at the base to engage the Yashica shutter releases. They're concave, made in Japan, and $1.75 each.
http://www.fedka.com/catalog/product_info.php?cPath=49&products_id=517
I have no affiliation with the seller, but I bought a few to try out and they fit fine on my Zeiss Ikon and Yashica GX. (Don't worry Tom, I still use love your Mini Soft Release for my ZI 😉). These new releases are a godsend compared to pushing down on a metal post! Just thought I'd pass on my findings 🙂.
It turns out Fedka has soft releases with a screw that's fine enough at the tip to fit on your common RFs and wide enough at the base to engage the Yashica shutter releases. They're concave, made in Japan, and $1.75 each.
http://www.fedka.com/catalog/product_info.php?cPath=49&products_id=517
I have no affiliation with the seller, but I bought a few to try out and they fit fine on my Zeiss Ikon and Yashica GX. (Don't worry Tom, I still use love your Mini Soft Release for my ZI 😉). These new releases are a godsend compared to pushing down on a metal post! Just thought I'd pass on my findings 🙂.