First of all thanks for the reply! I appreciate that! The seller said it was 1.33x but I imagine he didn't know what he was selling. The flares are reaaally awesome, my kowa 16h doesnt flare like this at all. I will try to to experiment with tape or something and see if it is a focus through lens, im crossing the fingers... hope it is. I tried a soviet 58mm and no vignette at all even though the rear diameter is small...like 22 - 23 mm or something like this. If anybody know anything about it or any way to mount it properly with a rapido clamp or something let me know! Cheers!