2X AUTO TELECONVERTER LENS TELEEXTENDER  LENS DOUBLE the FOCAL LENGTH of YOUR LENSES for PETRI BAYONET CAMERAS

50mm   BECOMES a 100mm

135mm BECOMES a 270mm

400mm BECOMES an 800mm

WHAT YOU HAVE JUST DOUBLE IT

PLEASE NOTE WE DO HAVE a VERY LARGE SELECTIONS of OTHER PETRI ITEMS in STOCK