SK / N-6H66M
SK / SPG20-H7
SK(斉藤光学) / BT50-MTA6-278
SKC / M42×4.5 SKS-G2
SIMTEK / A05.0016
SIMTEK / A04.2020
SIMTEK / A04.0016NCR
SHIMPO / BM-30H
SEIKI / Z/FM-QCV50
SEIKI / Z/FM4-QCV50
SEIKI / QCV50-TD
SEIKI / QCT50-TC25