Focal Length: 6.0mm (35mm equivalent：28mm)
Soratama Extension tube length: 20mm
Macro Extension Tube: No need
Step-up ring: 55-72mm
Remarks: By using conversion lens adapter CLA-12 from Olympus, 55mm filter can be fixed. Because the inside of the tube gets reflected on the picture, there is a need of trimming. The focus mode should be AF macro or manual.