31
Symptom
You want to attach our 2x or 1.4x converter lens.
Cause
Our converter is designed for the T (M42 screw) mount only.
Therefore it cannot be used with this lens.
Action
Use each company‘s own mount converter. However, be
aware that autofocus will not be available.
AS:
Hybrid ASP lens
UMC: Ultra Multi Coating
ED: Extra-low dispersion
IF: Innerfocusing