Quote Originally Posted by Mike Kovacs
They are similar to the Voigtlanders, but I am told they are a little shorter. I don't have a Voigtlander holders to compare though.
Yup. Four of them, and a fifth the same size with a slightly different flange (the flange stops a cm from the top, it goes to full thickness). All a little shorter than the Voigtländer holders I have.