Focus
Manual
Mount
Olympus OM
Format
35mm full frame
Weight
184g
Length mm
23
Spec Notes
1.4x matched teleconverter for the long/fast telephotos (250/2, 300/4.5, 350/2.8, 400/6.3). Optical formula not published in consulted sources -> elements/groups omitted. No filter thread (teleconverter).
Diameter mm
63