Sorry guys, was my girls birthday today.
Bhanu : Mine totally works. Just make sure the red dots are aligned on the back of the 55mm. Find the tooth on the mount (must line up with the red dots) and it will lock into place. If the breach doesn't move on its own (without a mount) your lens should be serviced.
Jus: Letus makes an OCT-19 adapter. It is similar to the nikon and canon mounts but larger. I imported a complete set of LOMO - 28mm, 35mm, 50mm, 75mm, 75mm Macro.
HERE is an image (actually they are for sale on ebay currently - just wrapped them on a feature - type in Konvas and you'll see them).
HERE is the 75mm Macro mounted on the extreme.
Hope this helps,
-C